diff --git a/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy b/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
index 37cbb85..adf6433 100644
--- a/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
+++ b/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
@@ -148,14 +148,12 @@ def generateEvent(Map results) {
 						 handlerName: name]
 
 			if (name=="temperature" || name=="heatingSetpoint" || name=="coolingSetpoint" ) {
-				def sendValue = convertTemperatureIfNeeded(value.toDouble(), "F", 1) //API return temperature value in F
-				sendValue =  location.temperatureScale == "C"? roundC(sendValue) : sendValue
+				def sendValue =  location.temperatureScale == "C"? roundC(convertFtoC(value.toDouble())) : value.toInteger()
 				isChange = isTemperatureStateChange(device, name, value.toString())
 				isDisplayed = isChange
 				event << [value: sendValue, unit: temperatureScale, isStateChange: isChange, displayed: isDisplayed]
 			}  else if (name=="maxCoolingSetpoint" || name=="minCoolingSetpoint" || name=="maxHeatingSetpoint" || name=="minHeatingSetpoint") {
-				def sendValue = convertTemperatureIfNeeded(value.toDouble(), "F", 1) //API return temperature value in F
-				sendValue =  location.temperatureScale == "C"? roundC(sendValue) : sendValue
+				def sendValue =  location.temperatureScale == "C"? roundC(convertFtoC(value.toDouble())) : value.toInteger()
 				event << [value: sendValue, unit: temperatureScale, displayed: false]
 			}  else if (name=="heatMode" || name=="coolMode" || name=="autoMode" || name=="auxHeatMode"){
 				isChange = isStateChange(device, name, value.toString())
@@ -253,7 +251,6 @@ void setCoolingSetpoint(setpoint) {
 	def maxCoolingSetpoint = device.currentValue("maxCoolingSetpoint")
 	def minCoolingSetpoint = device.currentValue("minCoolingSetpoint")
 
-
 	if (coolingSetpoint > maxCoolingSetpoint) {
 		coolingSetpoint = maxCoolingSetpoint
 	} else if (coolingSetpoint < minCoolingSetpoint) {
@@ -283,7 +280,6 @@ void setCoolingSetpoint(setpoint) {
 }
 
 void resumeProgram() {
-
 	log.debug "resumeProgram() is called"
 	sendEvent("name":"thermostatStatus", "value":"resuming schedule", "description":statusText, displayed: false)
 	def deviceId = device.deviceNetworkId.split(/\./).last()
@@ -354,7 +350,6 @@ def switchFanMode() {
 }
 
 def switchToFanMode(nextMode) {
-
 	log.debug "switching to fan mode: $nextMode"
 	def returnCommand
 
@@ -520,63 +515,56 @@ def fanAuto() {
 }
 
 def generateSetpointEvent() {
-
 	log.debug "Generate SetPoint Event"
 
 	def mode = device.currentValue("thermostatMode")
-	log.debug "Current Mode = ${mode}"
 
 	def heatingSetpoint = device.currentValue("heatingSetpoint")
-	log.debug "Heating Setpoint = ${heatingSetpoint}"
-
 	def coolingSetpoint = device.currentValue("coolingSetpoint")
-	log.debug "Cooling Setpoint = ${coolingSetpoint}"
-
 	def maxHeatingSetpoint = device.currentValue("maxHeatingSetpoint")
 	def maxCoolingSetpoint = device.currentValue("maxCoolingSetpoint")
 	def minHeatingSetpoint = device.currentValue("minHeatingSetpoint")
 	def minCoolingSetpoint = device.currentValue("minCoolingSetpoint")
 
-	if(location.temperatureScale == "C")
-	{
-		maxHeatingSetpoint = roundC(maxHeatingSetpoint)
-		maxCoolingSetpoint = roundC(maxCoolingSetpoint)
-		minHeatingSetpoint = roundC(minHeatingSetpoint)
-		minCoolingSetpoint = roundC(minCoolingSetpoint)
-		heatingSetpoint = roundC(heatingSetpoint)
-		coolingSetpoint = roundC(coolingSetpoint)
+	if(location.temperatureScale == "C") {
+		maxHeatingSetpoint = maxHeatingSetpoint > 40 ? roundC(convertFtoC(maxHeatingSetpoint)) : roundC(maxHeatingSetpoint)
+		maxCoolingSetpoint = maxCoolingSetpoint > 40 ? roundC(convertFtoC(maxCoolingSetpoint)) : roundC(maxCoolingSetpoint)
+		minHeatingSetpoint = minHeatingSetpoint > 40 ? roundC(convertFtoC(minHeatingSetpoint)) : roundC(minHeatingSetpoint)
+		minCoolingSetpoint = minCoolingSetpoint > 40 ? roundC(convertFtoC(minCoolingSetpoint)) : roundC(minCoolingSetpoint)
+		heatingSetpoint = heatingSetpoint > 40 ? roundC(convertFtoC(heatingSetpoint)) : roundC(heatingSetpoint)
+		coolingSetpoint = coolingSetpoint > 40 ? roundC(convertFtoC(coolingSetpoint)) : roundC(coolingSetpoint)
+	} else {
+		maxHeatingSetpoint = maxHeatingSetpoint < 40 ? roundC(convertCtoF(maxHeatingSetpoint)) : maxHeatingSetpoint
+		maxCoolingSetpoint = maxCoolingSetpoint < 40 ? roundC(convertCtoF(maxCoolingSetpoint)) : maxCoolingSetpoint
+		minHeatingSetpoint = minHeatingSetpoint < 40 ? roundC(convertCtoF(minHeatingSetpoint)) : minHeatingSetpoint
+		minCoolingSetpoint = minCoolingSetpoint < 40 ? roundC(convertCtoF(minCoolingSetpoint)) : minCoolingSetpoint
+		heatingSetpoint = heatingSetpoint < 40 ? roundC(convertCtoF(heatingSetpoint)) : heatingSetpoint
+		coolingSetpoint = coolingSetpoint < 40 ? roundC(convertCtoF(coolingSetpoint)) : coolingSetpoint
 	}
 
+	log.debug "Current Mode = ${mode}"
+	log.debug "Heating Setpoint = ${heatingSetpoint}"
+	log.debug "Cooling Setpoint = ${coolingSetpoint}"
 
 	sendEvent("name":"maxHeatingSetpoint", "value":maxHeatingSetpoint, "unit":location.temperatureScale)
 	sendEvent("name":"maxCoolingSetpoint", "value":maxCoolingSetpoint, "unit":location.temperatureScale)
 	sendEvent("name":"minHeatingSetpoint", "value":minHeatingSetpoint, "unit":location.temperatureScale)
 	sendEvent("name":"minCoolingSetpoint", "value":minCoolingSetpoint, "unit":location.temperatureScale)
-
+	sendEvent("name":"heatingSetpoint", "value":heatingSetpoint, "unit":location.temperatureScale)
+	sendEvent("name":"coolingSetpoint", "value":coolingSetpoint, "unit":location.temperatureScale)
 
 	if (mode == "heat") {
-
 		sendEvent("name":"thermostatSetpoint", "value":heatingSetpoint, "unit":location.temperatureScale)
-
 	}
 	else if (mode == "cool") {
-
 		sendEvent("name":"thermostatSetpoint", "value":coolingSetpoint, "unit":location.temperatureScale)
-
 	} else if (mode == "auto") {
-
 		sendEvent("name":"thermostatSetpoint", "value":"Auto")
-
 	} else if (mode == "off") {
-
 		sendEvent("name":"thermostatSetpoint", "value":"Off")
-
 	} else if (mode == "auxHeatOnly") {
-
 		sendEvent("name":"thermostatSetpoint", "value":heatingSetpoint, "unit":location.temperatureScale)
-
 	}
-
 }
 
 void raiseSetpoint() {
@@ -585,21 +573,31 @@ void raiseSetpoint() {
 	def maxHeatingSetpoint = device.currentValue("maxHeatingSetpoint")
 	def maxCoolingSetpoint = device.currentValue("maxCoolingSetpoint")
 
-
 	if (mode == "off" || mode == "auto") {
 		log.warn "this mode: $mode does not allow raiseSetpoint"
 	} else {
+
 		def heatingSetpoint = device.currentValue("heatingSetpoint")
 		def coolingSetpoint = device.currentValue("coolingSetpoint")
 		def thermostatSetpoint = device.currentValue("thermostatSetpoint")
+
+		if (location.temperatureScale == "C") {
+			maxHeatingSetpoint = maxHeatingSetpoint > 40 ? convertFtoC(maxHeatingSetpoint) : maxHeatingSetpoint
+			maxCoolingSetpoint = maxCoolingSetpoint > 40 ? convertFtoC(maxCoolingSetpoint) : maxCoolingSetpoint
+			heatingSetpoint = heatingSetpoint > 40 ? convertFtoC(heatingSetpoint) : heatingSetpoint
+			coolingSetpoint = coolingSetpoint > 40 ? convertFtoC(coolingSetpoint) : coolingSetpoint
+			thermostatSetpoint = thermostatSetpoint > 40 ? convertFtoC(thermostatSetpoint) : thermostatSetpoint
+		} else {
+			maxHeatingSetpoint = maxHeatingSetpoint < 40 ? convertCtoF(maxHeatingSetpoint) : maxHeatingSetpoint
+			maxCoolingSetpoint = maxCoolingSetpoint < 40 ? convertCtoF(maxCoolingSetpoint) : maxCoolingSetpoint
+			heatingSetpoint = heatingSetpoint < 40 ? convertCtoF(heatingSetpoint) : heatingSetpoint
+			coolingSetpoint = coolingSetpoint < 40 ? convertCtoF(coolingSetpoint) : coolingSetpoint
+			thermostatSetpoint = thermostatSetpoint < 40 ? convertCtoF(thermostatSetpoint) : thermostatSetpoint
+		}
+
 		log.debug "raiseSetpoint() mode = ${mode}, heatingSetpoint: ${heatingSetpoint}, coolingSetpoint:${coolingSetpoint}, thermostatSetpoint:${thermostatSetpoint}"
 
-		if (device.latestState('thermostatSetpoint')) {
-			targetvalue = device.latestState('thermostatSetpoint').value
-			targetvalue = location.temperatureScale == "F"? targetvalue.toInteger() : targetvalue.toDouble()
-		} else {
-			targetvalue = 0
-		}
+		targetvalue = thermostatSetpoint ? thermostatSetpoint : 0
 		targetvalue = location.temperatureScale == "F"? targetvalue + 1 : targetvalue + 0.5
 
 		if ((mode == "heat" || mode == "auxHeatOnly") && targetvalue > maxHeatingSetpoint) {
@@ -622,20 +620,29 @@ void lowerSetpoint() {
 	def minHeatingSetpoint = device.currentValue("minHeatingSetpoint")
 	def minCoolingSetpoint = device.currentValue("minCoolingSetpoint")
 
-
 	if (mode == "off" || mode == "auto") {
 		log.warn "this mode: $mode does not allow lowerSetpoint"
 	} else {
 		def heatingSetpoint = device.currentValue("heatingSetpoint")
 		def coolingSetpoint = device.currentValue("coolingSetpoint")
 		def thermostatSetpoint = device.currentValue("thermostatSetpoint")
-		log.debug "lowerSetpoint() mode = ${mode}, heatingSetpoint: ${heatingSetpoint}, coolingSetpoint:${coolingSetpoint}, thermostatSetpoint:${thermostatSetpoint}"
-		if (device.latestState('thermostatSetpoint')) {
-			targetvalue = device.latestState('thermostatSetpoint').value
-			targetvalue = location.temperatureScale == "F"? targetvalue.toInteger() : targetvalue.toDouble()
+
+		if (location.temperatureScale == "C") {
+			minHeatingSetpoint = minHeatingSetpoint > 40 ? convertFtoC(minHeatingSetpoint) : minHeatingSetpoint
+			minCoolingSetpoint = minCoolingSetpoint > 40 ? convertFtoC(minCoolingSetpoint) : minCoolingSetpoint
+			heatingSetpoint = heatingSetpoint > 40 ? convertFtoC(heatingSetpoint) : heatingSetpoint
+			coolingSetpoint = coolingSetpoint > 40 ? convertFtoC(coolingSetpoint) : coolingSetpoint
+			thermostatSetpoint = thermostatSetpoint > 40 ? convertFtoC(thermostatSetpoint) : thermostatSetpoint
 		} else {
-			targetvalue = 0
+			minHeatingSetpoint = minHeatingSetpoint < 40 ? convertCtoF(minHeatingSetpoint) : minHeatingSetpoint
+			minCoolingSetpoint = minCoolingSetpoint < 40 ? convertCtoF(minCoolingSetpoint) : minCoolingSetpoint
+			heatingSetpoint = heatingSetpoint < 40 ? convertCtoF(heatingSetpoint) : heatingSetpoint
+			coolingSetpoint = coolingSetpoint < 40 ? convertCtoF(coolingSetpoint) : coolingSetpoint
+			thermostatSetpoint = thermostatSetpoint < 40 ? convertCtoF(thermostatSetpoint) : thermostatSetpoint
 		}
+		log.debug "lowerSetpoint() mode = ${mode}, heatingSetpoint: ${heatingSetpoint}, coolingSetpoint:${coolingSetpoint}, thermostatSetpoint:${thermostatSetpoint}"
+
+		targetvalue = thermostatSetpoint ? thermostatSetpoint : 0
 		targetvalue = location.temperatureScale == "F"? targetvalue - 1 : targetvalue - 0.5
 
 		if ((mode == "heat" || mode == "auxHeatOnly") && targetvalue < minHeatingSetpoint) {
@@ -653,7 +660,6 @@ void lowerSetpoint() {
 
 //called by raiseSetpoint() and lowerSetpoint()
 void alterSetpoint(temp) {
-
 	def mode = device.currentValue("thermostatMode")
 
 	if (mode == "off" || mode == "auto") {
@@ -666,6 +672,18 @@ void alterSetpoint(temp) {
 		def targetHeatingSetpoint
 		def targetCoolingSetpoint
 
+		def temperatureScaleHasChanged = false
+
+		if (location.temperatureScale == "C") {
+			if ( heatingSetpoint > 40.0 || coolingSetpoint > 40.0 ) {
+				temperatureScaleHasChanged = true
+			}
+		} else {
+			if ( heatingSetpoint < 40.0 || coolingSetpoint < 40.0 ) {
+				temperatureScaleHasChanged = true
+			}
+		}
+
 		//step1: check thermostatMode, enforce limits before sending request to cloud
 		if (mode == "heat" || mode == "auxHeatOnly"){
 			if (temp.value > coolingSetpoint){
@@ -707,17 +725,18 @@ void alterSetpoint(temp) {
 				sendEvent("name": "thermostatSetpoint", "value": coolingSetpoint.toString(), displayed: false)
 			}
 		}
+
+		if ( temperatureScaleHasChanged )
+			generateSetpointEvent()
 		generateStatusEvent()
 	}
 }
 
 def generateStatusEvent() {
-
 	def mode = device.currentValue("thermostatMode")
 	def heatingSetpoint = device.currentValue("heatingSetpoint")
 	def coolingSetpoint = device.currentValue("coolingSetpoint")
 	def temperature = device.currentValue("temperature")
-
 	def statusText
 
 	log.debug "Generate Status Event for Mode = ${mode}"
@@ -727,36 +746,25 @@ def generateStatusEvent() {
 	log.debug "HVAC Mode = ${mode}"
 
 	if (mode == "heat") {
-
 		if (temperature >= heatingSetpoint)
 			statusText = "Right Now: Idle"
 		else
 			statusText = "Heating to ${heatingSetpoint} ${location.temperatureScale}"
-
 	} else if (mode == "cool") {
-
 		if (temperature <= coolingSetpoint)
 			statusText = "Right Now: Idle"
 		else
 			statusText = "Cooling to ${coolingSetpoint} ${location.temperatureScale}"
-
 	} else if (mode == "auto") {
-
 		statusText = "Right Now: Auto"
-
 	} else if (mode == "off") {
-
 		statusText = "Right Now: Off"
-
 	} else if (mode == "auxHeatOnly") {
-
 		statusText = "Emergency Heat"
-
 	} else {
-
 		statusText = "?"
-
 	}
+
 	log.debug "Generate Status Event = ${statusText}"
 	sendEvent("name":"thermostatStatus", "value":statusText, "description":statusText, displayed: true)
 }
@@ -770,7 +778,7 @@ def roundC (tempC) {
 }
 
 def convertFtoC (tempF) {
-	return String.format("%.1f", (Math.round(((tempF - 32)*(5/9)) * 2))/2)
+	return ((Math.round(((tempF - 32)*(5/9)) * 2))/2).toDouble()
 }
 
 def convertCtoF (tempC) {
diff --git a/devicetypes/smartthings/hue-bloom.src/hue-bloom.groovy b/devicetypes/smartthings/hue-bloom.src/hue-bloom.groovy
index e6a02ab..ae48f0d 100644
--- a/devicetypes/smartthings/hue-bloom.src/hue-bloom.groovy
+++ b/devicetypes/smartthings/hue-bloom.src/hue-bloom.groovy
@@ -57,7 +57,7 @@ metadata {
 }
 
 void installed() {
-	sendEvent(name: "checkInterval", value: 60 * 12, data: [protocol: "lan", hubHardwareId: device.hub.hardwareID], displayed: false)
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device.hub.hardwareID}\"}")
 }
 
 // parse events into attributes
@@ -172,6 +172,3 @@ def verifyPercent(percent) {
     }
 }
 
-def ping() {
-    log.debug "${parent.ping(this)}"
-}
diff --git a/devicetypes/smartthings/hue-bridge.src/hue-bridge.groovy b/devicetypes/smartthings/hue-bridge.src/hue-bridge.groovy
index fee818f..e7fbce1 100644
--- a/devicetypes/smartthings/hue-bridge.src/hue-bridge.groovy
+++ b/devicetypes/smartthings/hue-bridge.src/hue-bridge.groovy
@@ -45,7 +45,7 @@ metadata {
 }
 
 void installed() {
-	sendEvent(name: "checkInterval", value: 60 * 12, data: [protocol: "lan"], displayed: false)
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device.hub.hardwareID}\"}")
 }
 
 // parse events into attributes
@@ -87,6 +87,3 @@ def parse(description) {
 	results
 }
 
-def ping() {
-	log.debug "${parent.ping(this)}"
-}
diff --git a/devicetypes/smartthings/hue-bulb.src/hue-bulb.groovy b/devicetypes/smartthings/hue-bulb.src/hue-bulb.groovy
index 4dbae74..143b0b3 100644
--- a/devicetypes/smartthings/hue-bulb.src/hue-bulb.groovy
+++ b/devicetypes/smartthings/hue-bulb.src/hue-bulb.groovy
@@ -66,7 +66,7 @@ metadata {
 }
 
 void installed() {
-	sendEvent(name: "checkInterval", value: 60 * 12, data: [protocol: "lan", hubHardwareId: device.hub.hardwareID], displayed: false)
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device.hub.hardwareID}\"}")
 }
 
 // parse events into attributes
@@ -188,6 +188,3 @@ def verifyPercent(percent) {
     }
 }
 
-def ping() {
-    log.trace "${parent.ping(this)}"
-}
diff --git a/devicetypes/smartthings/hue-lux-bulb.src/hue-lux-bulb.groovy b/devicetypes/smartthings/hue-lux-bulb.src/hue-lux-bulb.groovy
index 158e11a..d855d38 100644
--- a/devicetypes/smartthings/hue-lux-bulb.src/hue-lux-bulb.groovy
+++ b/devicetypes/smartthings/hue-lux-bulb.src/hue-lux-bulb.groovy
@@ -50,7 +50,7 @@ metadata {
 }
 
 void installed() {
-	sendEvent(name: "checkInterval", value: 60 * 12, data: [protocol: "lan", hubHardwareId: device.hub.hardwareID], displayed: false)
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device.hub.hardwareID}\"}")
 }
 
 // parse events into attributes
@@ -93,6 +93,3 @@ void refresh() {
 	parent.manualRefresh()
 }
 
-def ping() {
-    log.debug "${parent.ping(this)}"
-}
diff --git a/devicetypes/smartthings/hue-white-ambiance-bulb.src/hue-white-ambiance-bulb.groovy b/devicetypes/smartthings/hue-white-ambiance-bulb.src/hue-white-ambiance-bulb.groovy
index 10315a5..718ed57 100644
--- a/devicetypes/smartthings/hue-white-ambiance-bulb.src/hue-white-ambiance-bulb.groovy
+++ b/devicetypes/smartthings/hue-white-ambiance-bulb.src/hue-white-ambiance-bulb.groovy
@@ -55,7 +55,7 @@ metadata {
 }
 
 void installed() {
-	sendEvent(name: "checkInterval", value: 60 * 12, data: [protocol: "lan", hubHardwareId: device.hub.hardwareID], displayed: false)
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device.hub.hardwareID}\"}")
 }
 
 // parse events into attributes
@@ -107,6 +107,3 @@ void refresh() {
     parent.manualRefresh()
 }
 
-def ping() {
-    log.debug "${parent.ping(this)}"
-}
diff --git a/devicetypes/smartthings/lifx-color-bulb.src/lifx-color-bulb.groovy b/devicetypes/smartthings/lifx-color-bulb.src/lifx-color-bulb.groovy
index b93235e..5ecfae0 100644
--- a/devicetypes/smartthings/lifx-color-bulb.src/lifx-color-bulb.groovy
+++ b/devicetypes/smartthings/lifx-color-bulb.src/lifx-color-bulb.groovy
@@ -11,9 +11,9 @@ metadata {
 		capability "Color Temperature"
 		capability "Switch"
 		capability "Switch Level" // brightness
-		capability "Polling"
 		capability "Refresh"
 		capability "Sensor"
+		capability "Health Check"
 	}
 
 	simulator {
@@ -23,7 +23,6 @@ metadata {
 	tiles(scale: 2) {
 		multiAttributeTile(name:"switch", type: "lighting", width: 6, height: 4, canChangeIcon: true){
 			tileAttribute ("device.switch", key: "PRIMARY_CONTROL") {
-				attributeState "unreachable", label: "?", action:"refresh.refresh", icon:"http://hosted.lifx.co/smartthings/v1/196xUnreachable.png", backgroundColor:"#666666"
 				attributeState "on", label:'${name}', action:"switch.off", icon:"http://hosted.lifx.co/smartthings/v1/196xOn.png", backgroundColor:"#79b821", nextState:"turningOff"
 				attributeState "off", label:'${name}', action:"switch.on", icon:"http://hosted.lifx.co/smartthings/v1/196xOff.png", backgroundColor:"#ffffff", nextState:"turningOn"
 				attributeState "turningOn", label:'Turning on', action:"switch.off", icon:"http://hosted.lifx.co/smartthings/v1/196xOn.png", backgroundColor:"#79b821", nextState:"turningOff"
@@ -64,12 +63,8 @@ metadata {
 	}
 }
 
-// parse events into attributes
-def parse(String description) {
-	if (description == 'updated') {
-		return // don't poll when config settings is being updated as it may time out
-	}
-	poll()
+void installed() {
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"cloud\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device?.hub?.hardwareID}\"}")
 }
 
 // handle commands
@@ -141,7 +136,6 @@ def setLevel(percentage) {
 		percentage = 1 // clamp to 1%
 	}
 	if (percentage == 0) {
-		sendEvent(name: "level", value: 0) // Otherwise the level value tile does not update
 		return off() // if the brightness is set to 0, just turn it off
 	}
 	parent.logErrors(logObject:log) {
@@ -193,14 +187,17 @@ def off() {
 	return []
 }
 
-def poll() {
-	log.debug "Executing 'poll' for ${device} ${this} ${device.deviceNetworkId}"
+def refresh() {
+	log.debug "Executing 'refresh'"
+	
 	def resp = parent.apiGET("/lights/${selector()}")
 	if (resp.status == 404) {
-		sendEvent(name: "switch", value: "unreachable")
+		state.online = false
+		sendEvent(name: "DeviceWatch-DeviceStatusUpdate", value: "offline", displayed: false)
+ 		log.warn "$device is Offline"
 		return []
 	} else if (resp.status != 200) {
-		log.error("Unexpected result in poll(): [${resp.status}] ${resp.data}")
+		log.error("Unexpected result in refresh(): [${resp.status}] ${resp.data}")
 		return []
 	}
 	def data = resp.data[0]
@@ -209,19 +206,20 @@ def poll() {
 	sendEvent(name: "label", value: data.label)
 	sendEvent(name: "level", value: Math.round((data.brightness ?: 1) * 100))
 	sendEvent(name: "switch.setLevel", value: Math.round((data.brightness ?: 1) * 100))
-	sendEvent(name: "switch", value: data.connected ? data.power : "unreachable")
+	sendEvent(name: "switch", value: data.power)
 	sendEvent(name: "color", value: colorUtil.hslToHex((data.color.hue / 3.6) as int, (data.color.saturation * 100) as int))
 	sendEvent(name: "hue", value: data.color.hue / 3.6)
 	sendEvent(name: "saturation", value: data.color.saturation * 100)
 	sendEvent(name: "colorTemperature", value: data.color.kelvin)
-	sendEvent(name: "model", value: "${data.product.company} ${data.product.name}")
+	sendEvent(name: "model", value: data.product.name)
 
-	return []
+	if (data.connected) {
+		sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false)
+		log.debug "$device is Online"
+	} else {
+		sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false)
+		log.warn "$device is Offline"
 }
-
-def refresh() {
-	log.debug "Executing 'refresh'"
-	poll()
 }
 
 def selector() {
diff --git a/devicetypes/smartthings/lifx-white-bulb.src/lifx-white-bulb.groovy b/devicetypes/smartthings/lifx-white-bulb.src/lifx-white-bulb.groovy
index 54a78df..16e7c57 100644
--- a/devicetypes/smartthings/lifx-white-bulb.src/lifx-white-bulb.groovy
+++ b/devicetypes/smartthings/lifx-white-bulb.src/lifx-white-bulb.groovy
@@ -10,9 +10,9 @@ metadata {
 		capability "Color Temperature"
 		capability "Switch"
 		capability "Switch Level" // brightness
-		capability "Polling"
 		capability "Refresh"
 		capability "Sensor"
+		capability "Health Check"
 	}
 
 	simulator {
@@ -22,13 +22,12 @@ metadata {
 	tiles(scale: 2) {
 		multiAttributeTile(name:"switch", type: "lighting", width: 6, height: 4, canChangeIcon: true){
 			tileAttribute ("device.switch", key: "PRIMARY_CONTROL") {
-				attributeState "unreachable", label: "?", action:"refresh.refresh", icon:"http://hosted.lifx.co/smartthings/v1/196xUnreachable.png", backgroundColor:"#666666"
 				attributeState "on", label:'${name}', action:"switch.off", icon:"http://hosted.lifx.co/smartthings/v1/196xOn.png", backgroundColor:"#79b821", nextState:"turningOff"
 				attributeState "off", label:'${name}', action:"switch.on", icon:"http://hosted.lifx.co/smartthings/v1/196xOff.png", backgroundColor:"#ffffff", nextState:"turningOn"
 				attributeState "turningOn", label:'Turning on', action:"switch.off", icon:"http://hosted.lifx.co/smartthings/v1/196xOn.png", backgroundColor:"#79b821", nextState:"turningOff"
 				attributeState "turningOff", label:'Turning off', action:"switch.on", icon:"http://hosted.lifx.co/smartthings/v1/196xOff.png", backgroundColor:"#ffffff", nextState:"turningOn"
-
 			}
+
 			tileAttribute ("device.level", key: "SLIDER_CONTROL") {
 				attributeState "level", action:"switch level.setLevel"
 			}
@@ -53,15 +52,10 @@ metadata {
 		main "switch"
 		details(["switch", "colorTempSliderControl", "colorTemp", "refresh"])
 	}
-
 }
 
-// parse events into attributes
-def parse(String description) {
-	if (description == 'updated') {
-		return // don't poll when config settings is being updated as it may time out
-	}
-	poll()
+void installed() {
+	sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"cloud\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${device?.hub?.hardwareID}\"}")
 }
 
 // handle commands
@@ -71,7 +65,6 @@ def setLevel(percentage) {
 		percentage = 1 // clamp to 1%
 	}
 	if (percentage == 0) {
-		sendEvent(name: "level", value: 0) // Otherwise the level value tile does not update
 		return off() // if the brightness is set to 0, just turn it off
 	}
 	parent.logErrors(logObject:log) {
@@ -123,14 +116,17 @@ def off() {
 	return []
 }
 
-def poll() {
-	log.debug "Executing 'poll' for ${device} ${this} ${device.deviceNetworkId}"
+def refresh() {
+	log.debug "Executing 'refresh'"
+	
 	def resp = parent.apiGET("/lights/${selector()}")
 	if (resp.status == 404) {
-		sendEvent(name: "switch", value: "unreachable")
+		state.online = false
+		sendEvent(name: "DeviceWatch-DeviceStatusUpdate", value: "offline", displayed: false)
+		log.warn "$device is Offline"
 		return []
 	} else if (resp.status != 200) {
-		log.error("Unexpected result in poll(): [${resp.status}] ${resp.data}")
+		log.error("Unexpected result in refresh(): [${resp.status}] ${resp.data}")
 		return []
 	}
 	def data = resp.data[0]
@@ -138,16 +134,17 @@ def poll() {
 	sendEvent(name: "label", value: data.label)
 	sendEvent(name: "level", value: Math.round((data.brightness ?: 1) * 100))
 	sendEvent(name: "switch.setLevel", value: Math.round((data.brightness ?: 1) * 100))
-	sendEvent(name: "switch", value: data.connected ? data.power : "unreachable")
+	sendEvent(name: "switch", value: data.power)
 	sendEvent(name: "colorTemperature", value: data.color.kelvin)
 	sendEvent(name: "model", value: data.product.name)
 
-	return []
-}
-
-def refresh() {
-	log.debug "Executing 'refresh'"
-	poll()
+	if (data.connected) {
+		sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false)
+		log.debug "$device is Online"
+	} else {
+		sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false)
+		log.warn "$device is Offline"
+	}
 }
 
 def selector() {
diff --git a/devicetypes/smartthings/smartsense-temp-humidity-sensor.src/smartsense-temp-humidity-sensor.groovy b/devicetypes/smartthings/smartsense-temp-humidity-sensor.src/smartsense-temp-humidity-sensor.groovy
index 638b9d4..98af1a4 100644
--- a/devicetypes/smartthings/smartsense-temp-humidity-sensor.src/smartsense-temp-humidity-sensor.groovy
+++ b/devicetypes/smartthings/smartsense-temp-humidity-sensor.src/smartsense-temp-humidity-sensor.groovy
@@ -264,7 +264,6 @@ def refresh()
 {
 	log.debug "refresh temperature, humidity, and battery"
 	return zigbee.readAttribute(0xFC45, 0x0000, ["mfgCode": 0xC2DF]) +   // Original firmware
-			zigbee.readAttribute(0xFC45, 0x0000, ["mfgCode": 0x104E]) +  // New firmware
 			zigbee.readAttribute(0x0402, 0x0000) +
 			zigbee.readAttribute(0x0001, 0x0020)
 }
diff --git a/smartapps/smartthings/hue-connect.src/hue-connect.groovy b/smartapps/smartthings/hue-connect.src/hue-connect.groovy
index d39d451..621d0d0 100644
--- a/smartapps/smartthings/hue-connect.src/hue-connect.groovy
+++ b/smartapps/smartthings/hue-connect.src/hue-connect.groovy
@@ -8,7 +8,7 @@
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
  *  in compliance with the License. You may obtain a copy of the License at:
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *  http://www.apache.org/licenses/LICENSE-2.0
  *
  *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
  *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
@@ -24,7 +24,7 @@ definition(
 	category: "SmartThings Labs",
 	iconUrl: "https://s3.amazonaws.com/smartapp-icons/Partner/hue.png",
 	iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Partner/hue@2x.png",
-    singleInstance: true
+	singleInstance: true
 )
 
 preferences {
@@ -110,7 +110,7 @@ def bridgeLinking() {
 		if (state.refreshUsernameNeeded) {
 			paragraphText = "The current Hue username is invalid.\n\nPlease press the button on your Hue Bridge to re-link. "
 		} else {
-		paragraphText = "Press the button on your Hue Bridge to setup a link. "
+			paragraphText = "Press the button on your Hue Bridge to setup a link. "
 		}
 	} else {
 		paragraphText = "You haven't selected a Hue Bridge, please Press \"Done\" and select one before clicking next."
@@ -198,7 +198,7 @@ void ssdpSubscribe() {
 
 private sendDeveloperReq() {
 	def token = app.id
-    def host = getBridgeIP()
+	def host = getBridgeIP()
 	sendHubCommand(new physicalgraph.device.HubAction([
 		method: "POST",
 		path: "/api",
@@ -209,7 +209,7 @@ private sendDeveloperReq() {
 }
 
 private discoverHueBulbs() {
-    def host = getBridgeIP()
+	def host = getBridgeIP()
 	sendHubCommand(new physicalgraph.device.HubAction([
 		method: "GET",
 		path: "/api/${state.username}/lights",
@@ -231,8 +231,8 @@ private verifyHueBridge(String deviceNetworkId, String host) {
 private verifyHueBridges() {
 	def devices = getHueBridges().findAll { it?.value?.verified != true }
 	devices.each {
-        def ip = convertHexToIP(it.value.networkAddress)
-        def port = convertHexToInt(it.value.deviceAddress)
+		def ip = convertHexToIP(it.value.networkAddress)
+		def port = convertHexToInt(it.value.deviceAddress)
 		verifyHueBridge("${it.value.mac}", (ip + ":" + port))
 	}
 }
@@ -261,7 +261,7 @@ Map bulbsDiscovered() {
 		bulbs.each {
 			def value = "${it.name}"
 			def key = app.id +"/"+ it.id
-            logg += "$value - $key, "
+			logg += "$value - $key, "
 			bulbmap["${key}"] = value
 		}
 	}
@@ -288,22 +288,23 @@ def installed() {
 def updated() {
 	log.trace "Updated with settings: ${settings}"
 	unsubscribe()
-    unschedule()
+	unschedule()
 	initialize()
 }
 
 def initialize() {
 	log.debug "Initializing"
-    unsubscribe(bridge)
-    state.inBulbDiscovery = false
-    state.bridgeRefreshCount = 0
-    state.bulbRefreshCount = 0
+	unsubscribe(bridge)
+	state.inBulbDiscovery = false
+	state.bridgeRefreshCount = 0
+	state.bulbRefreshCount = 0
 	state.updating = false
+	setupDeviceWatch()
 	if (selectedHue) {
-   		addBridge()
-        addBulbs()
-        doDeviceSync()
-        runEvery5Minutes("doDeviceSync")
+		addBridge()
+		addBulbs()
+		doDeviceSync()
+		runEvery5Minutes("doDeviceSync")
 	}
 }
 
@@ -321,6 +322,14 @@ def uninstalled(){
 	state.username = null
 }
 
+private setupDeviceWatch() {
+	def hub = location.hubs[0]
+	// Make sure that all child devices are enrolled in device watch
+	getChildDevices().each {
+		it.sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${hub?.hub?.hardwareID}\"}")
+	}
+}
+
 private upgradeDeviceType(device, newHueType) {
 	def deviceType = getDeviceType(newHueType)
 
@@ -369,7 +378,6 @@ def addBulbs() {
 					if (d) {
 						log.debug "created ${d.displayName} with id $dni"
 						d.completedSetup = true
-						d.refresh()
 					}
 				} else {
 					log.debug "$dni in not longer paired to the Hue Bridge or ID changed"
@@ -399,23 +407,23 @@ def addBridge() {
 	if(vbridge) {
 		def d = getChildDevice(selectedHue)
 		if(!d) {
-     		// compatibility with old devices
-            def newbridge = true
-            childDevices.each {
-            	if (it.getDeviceDataByName("mac")) {
-                    def newDNI = "${it.getDeviceDataByName("mac")}"
-                    if (newDNI != it.deviceNetworkId) {
-                    	def oldDNI = it.deviceNetworkId
-                        log.debug "updating dni for device ${it} with $newDNI - previous DNI = ${it.deviceNetworkId}"
-                        it.setDeviceNetworkId("${newDNI}")
+	 		// compatibility with old devices
+			def newbridge = true
+			childDevices.each {
+				if (it.getDeviceDataByName("mac")) {
+					def newDNI = "${it.getDeviceDataByName("mac")}"
+					if (newDNI != it.deviceNetworkId) {
+						def oldDNI = it.deviceNetworkId
+						log.debug "updating dni for device ${it} with $newDNI - previous DNI = ${it.deviceNetworkId}"
+						it.setDeviceNetworkId("${newDNI}")
 						if (oldDNI == selectedHue) {
 							app.updateSetting("selectedHue", newDNI)
 						}
-                        newbridge = false
-                    }
-                }
-            }
-        	if (newbridge) {
+						newbridge = false
+					}
+				}
+			}
+			if (newbridge) {
 				// Hue uses last 6 digits of MAC address as ID number, this number is shown on the bottom of the bridge
 				def idNumber = getBridgeIdNumber(selectedHue)
 				d = addChildDevice("smartthings", "Hue Bridge", selectedHue, vbridge.value.hub, ["label": "Hue Bridge ($idNumber)"])
@@ -426,9 +434,11 @@ def addBridge() {
 					d.completedSetup = true
 					log.debug "created ${d.displayName} with id ${d.deviceNetworkId}"
 					def childDevice = getChildDevice(d.deviceNetworkId)
+					childDevice?.sendEvent(name: "status", value: "Online")
+					childDevice?.sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false, isStateChange: true)
 					updateBridgeStatus(childDevice)
-					childDevice.sendEvent(name: "idNumber", value: idNumber)
 
+					childDevice?.sendEvent(name: "idNumber", value: idNumber)
 					if (vbridge.value.ip && vbridge.value.port) {
 						if (vbridge.value.ip.contains(".")) {
 							childDevice.sendEvent(name: "networkAddress", value: vbridge.value.ip + ":" +  vbridge.value.port)
@@ -580,47 +590,47 @@ void usernameHandler(physicalgraph.device.HubResponse hubResponse) {
 @Deprecated
 def locationHandler(evt) {
 	def description = evt.description
-    log.trace "Location: $description"
+	log.trace "Location: $description"
 
 	def hub = evt?.hubId
  	def parsedEvent = parseLanMessage(description)
 	parsedEvent << ["hub":hub]
 
 	if (parsedEvent?.ssdpTerm?.contains("urn:schemas-upnp-org:device:basic:1")) {
-    	//SSDP DISCOVERY EVENTS
+		//SSDP DISCOVERY EVENTS
 		log.trace "SSDP DISCOVERY EVENTS"
 		def bridges = getHueBridges()
 		log.trace bridges.toString()
 		if (!(bridges."${parsedEvent.ssdpUSN.toString()}")) {
-        	//bridge does not exist
+			//bridge does not exist
 			log.trace "Adding bridge ${parsedEvent.ssdpUSN}"
 			bridges << ["${parsedEvent.ssdpUSN.toString()}":parsedEvent]
 		} else {
 			// update the values
-            def ip = convertHexToIP(parsedEvent.networkAddress)
-            def port = convertHexToInt(parsedEvent.deviceAddress)
-            def host = ip + ":" + port
+			def ip = convertHexToIP(parsedEvent.networkAddress)
+			def port = convertHexToInt(parsedEvent.deviceAddress)
+			def host = ip + ":" + port
 			log.debug "Device ($parsedEvent.mac) was already found in state with ip = $host."
-            def dstate = bridges."${parsedEvent.ssdpUSN.toString()}"
+			def dstate = bridges."${parsedEvent.ssdpUSN.toString()}"
 			def dni = "${parsedEvent.mac}"
-            def d = getChildDevice(dni)
-            def networkAddress = null
-            if (!d) {
-            	childDevices.each {
-                    if (it.getDeviceDataByName("mac")) {
-                        def newDNI = "${it.getDeviceDataByName("mac")}"
+			def d = getChildDevice(dni)
+			def networkAddress = null
+			if (!d) {
+				childDevices.each {
+					if (it.getDeviceDataByName("mac")) {
+						def newDNI = "${it.getDeviceDataByName("mac")}"
 						d = it
-                        if (newDNI != it.deviceNetworkId) {
-                            def oldDNI = it.deviceNetworkId
-                            log.debug "updating dni for device ${it} with $newDNI - previous DNI = ${it.deviceNetworkId}"
-                            it.setDeviceNetworkId("${newDNI}")
+						if (newDNI != it.deviceNetworkId) {
+							def oldDNI = it.deviceNetworkId
+							log.debug "updating dni for device ${it} with $newDNI - previous DNI = ${it.deviceNetworkId}"
+							it.setDeviceNetworkId("${newDNI}")
 							if (oldDNI == selectedHue) {
 								app.updateSetting("selectedHue", newDNI)
 							}
-                            doDeviceSync()
-                        }
-                    }
-                }
+							doDeviceSync()
+						}
+					}
+				}
 			} else {
 				updateBridgeStatus(d)
 				if (d.getDeviceDataByName("networkAddress")) {
@@ -628,22 +638,22 @@ def locationHandler(evt) {
 				} else {
 					networkAddress = d.latestState('networkAddress').stringValue
 				}
-                log.trace "Host: $host - $networkAddress"
-                if(host != networkAddress) {
-                    log.debug "Device's port or ip changed for device $d..."
-                    dstate.ip = ip
-                    dstate.port = port
-                    dstate.name = "Philips hue ($ip)"
-                    d.sendEvent(name:"networkAddress", value: host)
-                    d.updateDataValue("networkAddress", host)
-            	}
-            }
+				log.trace "Host: $host - $networkAddress"
+				if(host != networkAddress) {
+					log.debug "Device's port or ip changed for device $d..."
+					dstate.ip = ip
+					dstate.port = port
+					dstate.name = "Philips hue ($ip)"
+					d.sendEvent(name:"networkAddress", value: host)
+					d.updateDataValue("networkAddress", host)
+				}
+			}
 		}
 	} else if (parsedEvent.headers && parsedEvent.body) {
 		log.trace "HUE BRIDGE RESPONSES"
 		def headerString = parsedEvent.headers.toString()
 		if (headerString?.contains("xml")) {
-            log.trace "description.xml response (application/xml)"
+			log.trace "description.xml response (application/xml)"
 			def body = new XmlSlurper().parseText(parsedEvent.body)
 			if (body?.device?.modelName?.text().startsWith("Philips hue bridge")) {
 				def bridges = getHueBridges()
@@ -655,7 +665,7 @@ def locationHandler(evt) {
 				}
 			}
 		} else if(headerString?.contains("json") && isValidSource(parsedEvent.mac)) {
-            log.trace "description.xml response (application/json)"
+			log.trace "description.xml response (application/json)"
 			def body = new groovy.json.JsonSlurper().parseText(parsedEvent.body)
 			if (body.success != null) {
 				if (body.success[0] != null) {
@@ -692,7 +702,7 @@ def doDeviceSync(){
 	poll()
 	ssdpSubscribe()
 	discoverBridges()
-    checkBridgeStatus()
+	checkBridgeStatus()
 }
 
 /**
@@ -705,10 +715,14 @@ def doDeviceSync(){
 private void updateBridgeStatus(childDevice) {
 	// Update activity timestamp if child device is a valid bridge
 	def vbridges = getVerifiedHueBridges()
-	def vbridge = vbridges.find {"${it.value.mac}".toUpperCase() == childDevice?.device?.deviceNetworkId?.toUpperCase()}
+	def vbridge = vbridges.find {
+		"${it.value.mac}".toUpperCase() == childDevice?.device?.deviceNetworkId?.toUpperCase()
+	}
 	vbridge?.value?.lastActivity = now()
-	if(vbridge) {
+	if (vbridge && childDevice?.device?.currentValue("status") == "Offline") {
+		log.debug "$childDevice is back Online"
 		childDevice?.sendEvent(name: "status", value: "Online")
+		childDevice?.sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false, isStateChange: true)
 	}
 }
 
@@ -717,29 +731,37 @@ private void updateBridgeStatus(childDevice) {
  * for the bridge and all connected lights. Also, set ID number on bridge if not done previously.
  */
 private void checkBridgeStatus() {
-    def bridges = getHueBridges()
-    // Check if each bridge has been heard from within the last 11 minutes (2 poll intervals times 5 minutes plus buffer)
-    def time = now() - (1000 * 60 * 11)
-    bridges.each {
-        def d = getChildDevice(it.value.mac)
-	    if(d) {
-		    // Set id number on bridge if not done
-		    if (it.value.idNumber == null) {
-			    it.value.idNumber = getBridgeIdNumber(it.value.serialNumber)
+	def bridges = getHueBridges()
+	// Check if each bridge has been heard from within the last 11 minutes (2 poll intervals times 5 minutes plus buffer)
+	def time = now() - (1000 * 60 * 11)
+	bridges.each {
+		def d = getChildDevice(it.value.mac)
+		if (d) {
+			// Set id number on bridge if not done
+			if (it.value.idNumber == null) {
+				it.value.idNumber = getBridgeIdNumber(it.value.serialNumber)
 				d.sendEvent(name: "idNumber", value: it.value.idNumber)
-		    }
+			}
 
 			if (it.value.lastActivity < time) { // it.value.lastActivity != null &&
-				log.warn "Bridge $it.value.idNumber is Offline"
-				d.sendEvent(name: "status", value: "Offline")
+				if (d.currentStatus == "Online") {
+					log.warn "$d is Offline"
+					d.sendEvent(name: "status", value: "Offline")
+					d.sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false, isStateChange: true)
 
-				state.bulbs?.each {
-					it.value.online = false
+					Calendar currentTime = Calendar.getInstance()
+					getChildDevices().each {
+						def id = getId(it)
+						if (state.bulbs[id]?.online == true) {
+							state.bulbs[id]?.online = false
+							state.bulbs[id]?.unreachableSince = currentTime.getTimeInMillis()
+							it.sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false, isStateChange: true)
+						}
+					}
 				}
-				getChildDevices().each {
-					it.sendEvent(name: "DeviceWatch-DeviceOffline", value: "offline", isStateChange: true, displayed: false)
-				}
-			} else {
+			} else if (d.currentStatus == "Offline") {
+				log.debug "$d is back Online"
+				d.sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false, isStateChange: true)
 				d.sendEvent(name: "status", value: "Online")//setOnline(false)
 			}
 		}
@@ -791,24 +813,24 @@ def parse(childDevice, description) {
 	def parsedEvent = parseLanMessage(description)
 	if (parsedEvent.headers && parsedEvent.body) {
 		def headerString = parsedEvent.headers.toString()
-        def bodyString = parsedEvent.body.toString()
+		def bodyString = parsedEvent.body.toString()
 		if (headerString?.contains("json")) {
-        	def body
-        	try {
-            	body = new groovy.json.JsonSlurper().parseText(bodyString)
-            } catch (all) {
-            	log.warn "Parsing Body failed - trying again..."
-                poll()
-            }
-            if (body instanceof java.util.Map) {
-                // get (poll) reponse
-                return handlePoll(body)
+			def body
+			try {
+				body = new groovy.json.JsonSlurper().parseText(bodyString)
+			} catch (all) {
+				log.warn "Parsing Body failed - trying again..."
+				poll()
+			}
+			if (body instanceof java.util.Map) {
+				// get (poll) reponse
+				return handlePoll(body)
 			} else {
 				//put response
 				return handleCommandResponse(body)
-            }
-        }
-   } else {
+			}
+		}
+	} else {
 		log.debug "parse - got something other than headers,body..."
 		return []
 	}
@@ -829,19 +851,19 @@ private sendColorEvents(device, xy, hue, sat, ct, colormode = null) {
 		device.sendEvent([name: "colorTemperature", value: temp, descriptionText: "Color temperature has changed"])
 		// Return because color temperature change is not counted as a color change in SmartThings so no hex update necessary
 		return
-                    }
+	}
 
 	if (hue != null) {
 		// 0-65535
 		def value = Math.min(Math.round(hue * 100 / 65535), 65535) as int
 		events["hue"] = [name: "hue", value: value, descriptionText: "Color has changed", displayed: false]
-                }
+	}
 
 	if (sat != null) {
 		// 0-254
 		def value = Math.round(sat * 100 / 254) as int
-        events["saturation"] = [name: "saturation", value: value, descriptionText: "Color has changed", displayed: false]
-            }
+		events["saturation"] = [name: "saturation", value: value, descriptionText: "Color has changed", displayed: false]
+	}
 
 	// Following is used to decide what to base hex calculations on since it is preferred to return a colorchange in hex
 	if (xy != null && colormode != "hs") {
@@ -943,12 +965,9 @@ private handleCommandResponse(body) {
 	updates.each { childDeviceNetworkId, params ->
 		def device = getChildDevice(childDeviceNetworkId)
 		def id = getId(device)
-		// If device is offline, then don't send events which will update device watch
-		if (isOnline(id)) {
-			sendBasicEvents(device, "on", params.on)
-			sendBasicEvents(device, "bri", params.bri)
-			sendColorEvents(device, params.xy, params.hue, params.sat, params.ct)
-		}
+		sendBasicEvents(device, "on", params.on)
+		sendBasicEvents(device, "bri", params.bri)
+		sendColorEvents(device, params.xy, params.hue, params.sat, params.ct)
 	}
 	return []
 }
@@ -981,39 +1000,38 @@ private handlePoll(body) {
 
 	def bulbs = getChildDevices()
 	for (bulb in body) {
-		def device = bulbs.find{it.deviceNetworkId == "${app.id}/${bulb.key}"}
+		def device = bulbs.find { it.deviceNetworkId == "${app.id}/${bulb.key}" }
 		if (device) {
 			if (bulb.value.state?.reachable) {
-				if (state.bulbs[bulb.key]?.online == false) {
+				if (state.bulbs[bulb.key]?.online == false || state.bulbs[bulb.key]?.online == null) {
 					// light just came back online, notify device watch
-					def lastActivity = now()
-					device.sendEvent(name: "deviceWatch-status", value: "ONLINE", description: "Last Activity is on ${new Date((long) lastActivity)}", displayed: false, isStateChange: true)
+					device.sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false, isStateChange: true)
 					log.debug "$device is Online"
 				}
 				// Mark light as "online"
 				state.bulbs[bulb.key]?.unreachableSince = null
 				state.bulbs[bulb.key]?.online = true
-
-				// If user just executed commands, then do not send events to avoid confusing the turning on/off state
-				if (!state.updating) {
-					sendBasicEvents(device, "on", bulb.value?.state?.on)
-					sendBasicEvents(device, "bri", bulb.value?.state?.bri)
-					sendColorEvents(device, bulb.value?.state?.xy, bulb.value?.state?.hue, bulb.value?.state?.sat, bulb.value?.state?.ct, bulb.value?.state?.colormode)
-				}
 			} else {
 				if (state.bulbs[bulb.key]?.unreachableSince == null) {
 					// Store the first time where device was reported as "unreachable"
 					state.bulbs[bulb.key]?.unreachableSince = currentTime.getTimeInMillis()
-				} else if (state.bulbs[bulb.key]?.online) {
+				}
+				if (state.bulbs[bulb.key]?.online || state.bulbs[bulb.key]?.online == null) {
 					// Check if device was "unreachable" for more than 11 minutes and mark "offline" if necessary
-					if (state.bulbs[bulb.key]?.unreachableSince < time11.getTimeInMillis()) {
+					if (state.bulbs[bulb.key]?.unreachableSince < time11.getTimeInMillis() || state.bulbs[bulb.key]?.online == null) {
 						log.warn "$device went Offline"
 						state.bulbs[bulb.key]?.online = false
-						device.sendEvent(name: "DeviceWatch-DeviceOffline", value: "offline", displayed: false, isStateChange: true)
+						device.sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false, isStateChange: true)
 					}
 				}
 				log.warn "$device may not reachable by Hue bridge"
 			}
+			// If user just executed commands, then do not send events to avoid confusing the turning on/off state
+			if (!state.updating) {
+				sendBasicEvents(device, "on", bulb.value?.state?.on)
+				sendBasicEvents(device, "bri", bulb.value?.state?.bri)
+				sendColorEvents(device, bulb.value?.state?.xy, bulb.value?.state?.hue, bulb.value?.state?.sat, bulb.value?.state?.ct, bulb.value?.state?.colormode)
+			}
 		}
 	}
 	return []
@@ -1032,16 +1050,16 @@ def updateHandler() {
 
 def hubVerification(bodytext) {
 	log.trace "Bridge sent back description.xml for verification"
-    def body = new XmlSlurper().parseText(bodytext)
-    if (body?.device?.modelName?.text().startsWith("Philips hue bridge")) {
-        def bridges = getHueBridges()
-        def bridge = bridges.find {it?.key?.contains(body?.device?.UDN?.text())}
-        if (bridge) {
-            bridge.value << [name:body?.device?.friendlyName?.text(), serialNumber:body?.device?.serialNumber?.text(), verified: true]
-        } else {
-            log.error "/description.xml returned a bridge that didn't exist"
-        }
-    }
+	def body = new XmlSlurper().parseText(bodytext)
+	if (body?.device?.modelName?.text().startsWith("Philips hue bridge")) {
+		def bridges = getHueBridges()
+		def bridge = bridges.find {it?.key?.contains(body?.device?.UDN?.text())}
+		if (bridge) {
+			bridge.value << [name:body?.device?.friendlyName?.text(), serialNumber:body?.device?.serialNumber?.text(), verified: true]
+		} else {
+			log.error "/description.xml returned a bridge that didn't exist"
+		}
+	}
 }
 
 def on(childDevice) {
@@ -1050,7 +1068,7 @@ def on(childDevice) {
 	updateInProgress()
 	createSwitchEvent(childDevice, "on")
 	put("lights/$id/state", [on: true])
-    return "Bulb is turning On"
+	return "Bulb is turning On"
 }
 
 def off(childDevice) {
@@ -1059,15 +1077,15 @@ def off(childDevice) {
 	updateInProgress()
 	createSwitchEvent(childDevice, "off")
 	put("lights/$id/state", [on: false])
-    return "Bulb is turning Off"
+	return "Bulb is turning Off"
 }
 
 def setLevel(childDevice, percent) {
 	log.debug "Executing 'setLevel'"
 	def id = getId(childDevice)
-    updateInProgress()
+	updateInProgress()
 	// 1 - 254
-    def level
+	def level
 	if (percent == 1)
 		level = 1
 	else
@@ -1101,7 +1119,7 @@ def setSaturation(childDevice, percent) {
 def setHue(childDevice, percent) {
 	log.debug "Executing 'setHue($percent)'"
 	def id = getId(childDevice)
-    updateInProgress()
+	updateInProgress()
 	// 0 - 65535
 	def level =	Math.min(Math.round(percent * 65535 / 100), 65535)
 	// TODO should this be done by app only or should we default to on?
@@ -1113,7 +1131,7 @@ def setHue(childDevice, percent) {
 def setColorTemperature(childDevice, huesettings) {
 	log.debug "Executing 'setColorTemperature($huesettings)'"
 	def id = getId(childDevice)
-    updateInProgress()
+	updateInProgress()
 	// 153 (6500K) to 500 (2000K)
 	def ct = hueSettings == 6500 ? 153 : Math.round(1000000/huesettings)
 	createSwitchEvent(childDevice, "on")
@@ -1122,14 +1140,14 @@ def setColorTemperature(childDevice, huesettings) {
 }
 
 def setColor(childDevice, huesettings) {
-    log.debug "Executing 'setColor($huesettings)'"
+	log.debug "Executing 'setColor($huesettings)'"
 	def id = getId(childDevice)
-    updateInProgress()
+	updateInProgress()
 
-    def value = [:]
-    def hue = null
-    def sat = null
-    def xy = null
+	def value = [:]
+	def hue = null
+	def sat = null
+	def xy = null
 
 	// Prefer hue/sat over hex to make sure it works with the majority of the smartapps
 	if (huesettings.hue != null || huesettings.sat != null) {
@@ -1154,48 +1172,32 @@ def setColor(childDevice, huesettings) {
 		// value.xy = calculateXY(hex, model)
 		// Once groups, or scenes are introduced it might be a good idea to use unique models again
 		value.xy = calculateXY(hex)
-    }
+	}
 */
 
-    // Default behavior is to turn light on
-    value.on = true
+	// Default behavior is to turn light on
+	value.on = true
 
-    if (huesettings.level != null) {
-        if (huesettings.level <= 0)
-            value.on = false
-        else if (huesettings.level == 1)
-            value.bri = 1
-        else
+	if (huesettings.level != null) {
+		if (huesettings.level <= 0)
+			value.on = false
+		else if (huesettings.level == 1)
+			value.bri = 1
+		else
 			value.bri = Math.min(Math.round(huesettings.level * 254 / 100), 254)
-    }
-    value.alert = huesettings.alert ? huesettings.alert : "none"
-    value.transitiontime = huesettings.transitiontime ? huesettings.transitiontime : 4
+	}
+	value.alert = huesettings.alert ? huesettings.alert : "none"
+	value.transitiontime = huesettings.transitiontime ? huesettings.transitiontime : 4
 
-    // Make sure to turn off light if requested
-    if (huesettings.switch == "off")
-        value.on = false
+	// Make sure to turn off light if requested
+	if (huesettings.switch == "off")
+		value.on = false
 
 	createSwitchEvent(childDevice, value.on ? "on" : "off")
-    put("lights/$id/state", value)
+	put("lights/$id/state", value)
 	return "Setting color to $value"
 }
 
-def ping(childDevice) {
-	if (childDevice.device?.deviceNetworkId?.equalsIgnoreCase(selectedHue)) {
-		if (childDevice.device?.currentValue("status")?.equalsIgnoreCase("Online")) {
-			childDevice.sendEvent(name: "deviceWatch-ping", value: "ONLINE", description: "Hue Bridge is reachable", displayed: false, isStateChange: true)
-			return "Bridge is Online"
-		} else {
-			return "Bridge is Offline"
-		}
-	} else if (isOnline(getId(childDevice))) {
-		childDevice.sendEvent(name: "deviceWatch-ping", value: "ONLINE", description: "Hue Light is reachable", displayed: false, isStateChange: true)
-		return "Device is Online"
-	} else {
-		return "Device is Offline"
-	}
-}
-
 private getId(childDevice) {
 	if (childDevice.device?.deviceNetworkId?.startsWith("HUE")) {
 		return childDevice.device?.deviceNetworkId[3..-1]
@@ -1246,30 +1248,30 @@ private getBridgeIdNumber(serialNumber) {
 private getBridgeIP() {
 	def host = null
 	if (selectedHue) {
-        def d = getChildDevice(selectedHue)
-    	if (d) {
-        	if (d.getDeviceDataByName("networkAddress"))
-            	host =  d.getDeviceDataByName("networkAddress")
-        else
-        		host = d.latestState('networkAddress').stringValue
-        }
-        if (host == null || host == "") {
-            def serialNumber = selectedHue
-            def bridge = getHueBridges().find { it?.value?.serialNumber?.equalsIgnoreCase(serialNumber) }?.value
-            if (!bridge) {
-            	bridge = getHueBridges().find { it?.value?.mac?.equalsIgnoreCase(serialNumber) }?.value
-            }
-            if (bridge?.ip && bridge?.port) {
-            	if (bridge?.ip.contains("."))
-            		host = "${bridge?.ip}:${bridge?.port}"
-                else
-                	host = "${convertHexToIP(bridge?.ip)}:${convertHexToInt(bridge?.port)}"
-            } else if (bridge?.networkAddress && bridge?.deviceAddress)
-            	host = "${convertHexToIP(bridge?.networkAddress)}:${convertHexToInt(bridge?.deviceAddress)}"
-        }
-        log.trace "Bridge: $selectedHue - Host: $host"
-    }
-    return host
+		def d = getChildDevice(selectedHue)
+		if (d) {
+			if (d.getDeviceDataByName("networkAddress"))
+				host =  d.getDeviceDataByName("networkAddress")
+		else
+				host = d.latestState('networkAddress').stringValue
+		}
+		if (host == null || host == "") {
+			def serialNumber = selectedHue
+			def bridge = getHueBridges().find { it?.value?.serialNumber?.equalsIgnoreCase(serialNumber) }?.value
+			if (!bridge) {
+				bridge = getHueBridges().find { it?.value?.mac?.equalsIgnoreCase(serialNumber) }?.value
+			}
+			if (bridge?.ip && bridge?.port) {
+				if (bridge?.ip.contains("."))
+					host = "${bridge?.ip}:${bridge?.port}"
+				else
+					host = "${convertHexToIP(bridge?.ip)}:${convertHexToInt(bridge?.port)}"
+			} else if (bridge?.networkAddress && bridge?.deviceAddress)
+				host = "${convertHexToIP(bridge?.networkAddress)}:${convertHexToInt(bridge?.deviceAddress)}"
+		}
+		log.trace "Bridge: $selectedHue - Host: $host"
+	}
+	return host
 }
 
 private Integer convertHexToInt(hex) {
@@ -1309,7 +1311,7 @@ private List getRealHubFirmwareVersions() {
  * @param childDevice device to send event for
  * @param setSwitch The new switch state, "on" or "off"
  * @param setLevel Optional, switchLevel between 0-100, used if you set level to 0 for example since
- *                  that should generate "off" instead of level change
+ *				  that should generate "off" instead of level change
  */
 private void createSwitchEvent(childDevice, setSwitch, setLevel = null) {
 
@@ -1452,8 +1454,8 @@ private float[] calculateXY(colorStr, model = null) {
 		xy[0] = closestPoint.x;
 		xy[1] = closestPoint.y;
 	}
-	//        xy[0] = PHHueHelper.precision(4, xy[0]);
-	//        xy[1] = PHHueHelper.precision(4, xy[1]);
+	//		xy[0] = PHHueHelper.precision(4, xy[0]);
+	//		xy[1] = PHHueHelper.precision(4, xy[1]);
 
 
 	// TODO needed, assume it just sets number of decimals?
@@ -1471,7 +1473,7 @@ private float[] calculateXY(colorStr, model = null) {
  *
  * @param points the float array contain x and the y value. [x,y]
  * @param model the model of the lamp, example: "LCT001" for hue bulb. Used to calculate the color gamut.
- *          If this value is empty the default gamut values are used.
+ *		If this value is empty the default gamut values are used.
  * @return the color value in hex (#ff03d3). If xy is null OR xy is not an array of size 2, Color. BLACK will be returned
  */
 private String colorFromXY(points, model ) {
@@ -1785,3 +1787,4 @@ def hsvToHex(hue, sat, value = 100){
 
 	return "#$r1$g1$b1"
 }
+
diff --git a/smartapps/smartthings/lifx-connect.src/lifx-connect.groovy b/smartapps/smartthings/lifx-connect.src/lifx-connect.groovy
index 7832b68..41f20ef 100644
--- a/smartapps/smartthings/lifx-connect.src/lifx-connect.groovy
+++ b/smartapps/smartthings/lifx-connect.src/lifx-connect.groovy
@@ -242,8 +242,6 @@ def installed() {
 	} else {
 		initialize()
 	}
-	// Check for new devices and remove old ones every 3 hours
-	runEvery3Hours('updateDevices')
 }
 
 // called after settings are changed
@@ -271,9 +269,19 @@ private removeChildDevices(devices) {
 def initialize() {
 	log.debug "initialize"
 	updateDevices()
+	// Check for new devices and remove old ones every 3 hours
+	runEvery5Minutes('updateDevices')
+	setupDeviceWatch()
 }
 
 // Misc
+private setupDeviceWatch() {
+	def hub = location.hubs[0]
+	// Make sure that all child devices are enrolled in device watch
+	getChildDevices().each {
+		it.sendEvent(name: "DeviceWatch-Enroll", value: "{\"protocol\": \"LAN\", \"scheme\":\"untracked\", \"hubHardwareId\": \"${hub?.hub?.hardwareID}\"}")
+	}
+}
 
 Map apiRequestHeaders() {
 	return ["Authorization": "Bearer ${state.lifxAccessToken}",
@@ -376,7 +384,7 @@ def updateDevices() {
 			def data = [
 					label: device.label,
 					level: Math.round((device.brightness ?: 1) * 100),
-					switch: device.connected ? device.power : "unreachable",
+					switch: device.power,
 					colorTemperature: device.color.kelvin
 			]
 			if (device.product.capabilities.has_color) {
@@ -387,18 +395,42 @@ def updateDevices() {
 			} else {
 				childDevice = addChildDevice(app.namespace, "LIFX White Bulb", device.id, null, data)
 			}
+			childDevice?.completedSetup = true
+		} else {
+			if (device.product.capabilities.has_color) {
+				sendEvent(name: "color", value: colorUtil.hslToHex((device.color.hue / 3.6) as int, (device.color.saturation * 100) as int))
+				sendEvent(name: "hue", value: device.color.hue / 3.6)
+				sendEvent(name: "saturation", value: device.color.saturation * 100)
+			}
+			childDevice.sendEvent(name: "label", value: device.label)
+			childDevice.sendEvent(name: "level", value: Math.round((device.brightness ?: 1) * 100))
+			childDevice.sendEvent(name: "switch.setLevel", value: Math.round((device.brightness ?: 1) * 100))
+			childDevice.sendEvent(name: "switch", value: device.power)
+			childDevice.sendEvent(name: "colorTemperature", value: device.color.kelvin)
+			childDevice.sendEvent(name: "model", value: device.product.name)
 		}
+
+		if (state.devices[device.id] == null) {
+			// State missing, add it and set it to opposite status as current status to provoke event below
+			state.devices[device.id] = [online : !device.connected]
+		}
+
+		if (!state.devices[device.id]?.online && device.connected) {
+			// Device came online after being offline
+			childDevice?.sendEvent(name: "DeviceWatch-DeviceStatus", value: "online", displayed: false)
+			log.debug "$device is back Online"
+		} else if (state.devices[device.id]?.online && !device.connected) {
+			// Device went offline after being online
+			childDevice?.sendEvent(name: "DeviceWatch-DeviceStatus", value: "offline", displayed: false)
+			log.debug "$device went Offline"
+		}
+		state.devices[device.id] = [online: device.connected]
 	}
 	getChildDevices().findAll { !selectors.contains("${it.deviceNetworkId}") }.each {
 		log.info("Deleting ${it.deviceNetworkId}")
+		state.devices[it.deviceNetworkId] = null
 		deleteChildDevice(it.deviceNetworkId)
 	}
-	runIn(1, 'refreshDevices') // Asynchronously refresh devices so we don't block
 }
 
-def refreshDevices() {
-	log.info("Refreshing all devices...")
-	getChildDevices().each { device ->
-		device.refresh()
-	}
-}
+