diff --git a/devicetypes/smartthings/cree-bulb.src/cree-bulb.groovy b/devicetypes/smartthings/cree-bulb.src/cree-bulb.groovy
index ea57db9..69d26f7 100644
--- a/devicetypes/smartthings/cree-bulb.src/cree-bulb.groovy
+++ b/devicetypes/smartthings/cree-bulb.src/cree-bulb.groovy
@@ -97,6 +97,7 @@ def refresh() {
 }
 
 def healthPoll() {
+    log.debug "healthPoll()"
     def cmds = zigbee.onOffRefresh() + zigbee.levelRefresh()
     cmds.each{ sendHubCommand(new physicalgraph.device.HubAction(it))}
 }
diff --git a/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy b/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
index 1b8d775..37cbb85 100644
--- a/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
+++ b/devicetypes/smartthings/ecobee-thermostat.src/ecobee-thermostat.groovy
@@ -655,55 +655,60 @@ void lowerSetpoint() {
 void alterSetpoint(temp) {
 
 	def mode = device.currentValue("thermostatMode")
-	def heatingSetpoint = device.currentValue("heatingSetpoint")
-	def coolingSetpoint = device.currentValue("coolingSetpoint")
-	def deviceId = device.deviceNetworkId.split(/\./).last()
 
-	def targetHeatingSetpoint
-	def targetCoolingSetpoint
-
-	//step1: check thermostatMode, enforce limits before sending request to cloud
-	if (mode == "heat" || mode == "auxHeatOnly"){
-		if (temp.value > coolingSetpoint){
-			targetHeatingSetpoint = temp.value
-			targetCoolingSetpoint = temp.value
-		} else {
-			targetHeatingSetpoint = temp.value
-			targetCoolingSetpoint = coolingSetpoint
-		}
-	} else if (mode == "cool") {
-		//enforce limits before sending request to cloud
-		if (temp.value < heatingSetpoint){
-			targetHeatingSetpoint = temp.value
-			targetCoolingSetpoint = temp.value
-		} else {
-			targetHeatingSetpoint = heatingSetpoint
-			targetCoolingSetpoint = temp.value
-		}
-	}
-
-	log.debug "alterSetpoint >> in mode ${mode} trying to change heatingSetpoint to $targetHeatingSetpoint " +
-			"coolingSetpoint to $targetCoolingSetpoint with holdType : ${holdType}"
-
-	def sendHoldType = holdType ? (holdType=="Temporary")? "nextTransition" : (holdType=="Permanent")? "indefinite" : "indefinite" : "indefinite"
-
-	def coolingValue = location.temperatureScale == "C"? convertCtoF(targetCoolingSetpoint) : targetCoolingSetpoint
-	def heatingValue = location.temperatureScale == "C"? convertCtoF(targetHeatingSetpoint) : targetHeatingSetpoint
-
-	if (parent.setHold(heatingValue, coolingValue, deviceId, sendHoldType)) {
-		sendEvent("name": "thermostatSetpoint", "value": temp.value, displayed: false)
-		sendEvent("name": "heatingSetpoint", "value": targetHeatingSetpoint, "unit": location.temperatureScale)
-		sendEvent("name": "coolingSetpoint", "value": targetCoolingSetpoint, "unit": location.temperatureScale)
-		log.debug "alterSetpoint in mode $mode succeed change setpoint to= ${temp.value}"
+	if (mode == "off" || mode == "auto") {
+		log.warn "this mode: $mode does not allow alterSetpoint"
 	} else {
-		log.error "Error alterSetpoint()"
+		def heatingSetpoint = device.currentValue("heatingSetpoint")
+		def coolingSetpoint = device.currentValue("coolingSetpoint")
+		def deviceId = device.deviceNetworkId.split(/\./).last()
+
+		def targetHeatingSetpoint
+		def targetCoolingSetpoint
+
+		//step1: check thermostatMode, enforce limits before sending request to cloud
 		if (mode == "heat" || mode == "auxHeatOnly"){
-			sendEvent("name": "thermostatSetpoint", "value": heatingSetpoint.toString(), displayed: false)
+			if (temp.value > coolingSetpoint){
+				targetHeatingSetpoint = temp.value
+				targetCoolingSetpoint = temp.value
+			} else {
+				targetHeatingSetpoint = temp.value
+				targetCoolingSetpoint = coolingSetpoint
+			}
 		} else if (mode == "cool") {
-			sendEvent("name": "thermostatSetpoint", "value": coolingSetpoint.toString(), displayed: false)
+			//enforce limits before sending request to cloud
+			if (temp.value < heatingSetpoint){
+				targetHeatingSetpoint = temp.value
+				targetCoolingSetpoint = temp.value
+			} else {
+				targetHeatingSetpoint = heatingSetpoint
+				targetCoolingSetpoint = temp.value
+			}
 		}
+
+		log.debug "alterSetpoint >> in mode ${mode} trying to change heatingSetpoint to $targetHeatingSetpoint " +
+				"coolingSetpoint to $targetCoolingSetpoint with holdType : ${holdType}"
+
+		def sendHoldType = holdType ? (holdType=="Temporary")? "nextTransition" : (holdType=="Permanent")? "indefinite" : "indefinite" : "indefinite"
+
+		def coolingValue = location.temperatureScale == "C"? convertCtoF(targetCoolingSetpoint) : targetCoolingSetpoint
+		def heatingValue = location.temperatureScale == "C"? convertCtoF(targetHeatingSetpoint) : targetHeatingSetpoint
+
+		if (parent.setHold(heatingValue, coolingValue, deviceId, sendHoldType)) {
+			sendEvent("name": "thermostatSetpoint", "value": temp.value, displayed: false)
+			sendEvent("name": "heatingSetpoint", "value": targetHeatingSetpoint, "unit": location.temperatureScale)
+			sendEvent("name": "coolingSetpoint", "value": targetCoolingSetpoint, "unit": location.temperatureScale)
+			log.debug "alterSetpoint in mode $mode succeed change setpoint to= ${temp.value}"
+		} else {
+			log.error "Error alterSetpoint()"
+			if (mode == "heat" || mode == "auxHeatOnly"){
+				sendEvent("name": "thermostatSetpoint", "value": heatingSetpoint.toString(), displayed: false)
+			} else if (mode == "cool") {
+				sendEvent("name": "thermostatSetpoint", "value": coolingSetpoint.toString(), displayed: false)
+			}
+		}
+		generateStatusEvent()
 	}
-	generateStatusEvent()
 }
 
 def generateStatusEvent() {
diff --git a/devicetypes/smartthings/nyce-open-closed-sensor.src/.st-ignore b/devicetypes/smartthings/nyce-open-closed-sensor.src/.st-ignore
new file mode 100644
index 0000000..f78b46e
--- /dev/null
+++ b/devicetypes/smartthings/nyce-open-closed-sensor.src/.st-ignore
@@ -0,0 +1,2 @@
+.st-ignore
+README.md
diff --git a/devicetypes/smartthings/nyce-open-closed-sensor.src/README.md b/devicetypes/smartthings/nyce-open-closed-sensor.src/README.md
new file mode 100644
index 0000000..64624e3
--- /dev/null
+++ b/devicetypes/smartthings/nyce-open-closed-sensor.src/README.md
@@ -0,0 +1,37 @@
+# Nyce Door/Window Sensor (Open/Close Sensor)
+
+
+
+Works with:
+
+* [NYCE Door/Window Sensor NCZ-3011](https://support.smartthings.com/hc/en-us/articles/204576764-NYCE-Door-Window-Sensor)
+
+## Table of contents
+
+* [Capabilities](#capabilities)
+* [Health](#device-health)
+* [Battery](#battery-specification)
+* [Troubleshooting](#troubleshooting)
+
+## Capabilities
+
+* **Configuration** - _configure()_ command called when device is installed or device preferences updated
+* **Contact Sensor** - can detect contact (with possible values - open/closed)
+* **Battery** - defines device uses a battery
+* **Refresh** - _refresh()_ command for status updates
+* **Health Check** - indicates ability to get device health notifications
+
+## Device Health
+
+A Category C2 Nyce Door/Window sensor that has 12min check-in interval
+
+## Battery Specification
+
+One 3V CR2032 battery required.
+
+## Troubleshooting
+
+If the device doesn't pair when trying from the SmartThings mobile app, it is possible that the sensor is out of range.
+Pairing needs to be tried again by placing the sensor closer to the hub.
+Instructions related to pairing, resetting and removing the sensor from SmartThings can be found in the following link:
+* [Nyce Door/Window Sensor](https://support.smartthings.com/hc/en-us/articles/204576764-NYCE-Door-Window-Sensor)
diff --git a/devicetypes/smartthings/nyce-open-closed-sensor.src/nyce-open-closed-sensor.groovy b/devicetypes/smartthings/nyce-open-closed-sensor.src/nyce-open-closed-sensor.groovy
index 506ca89..7f75068 100644
--- a/devicetypes/smartthings/nyce-open-closed-sensor.src/nyce-open-closed-sensor.groovy
+++ b/devicetypes/smartthings/nyce-open-closed-sensor.src/nyce-open-closed-sensor.groovy
@@ -19,25 +19,26 @@ import physicalgraph.zigbee.clusters.iaszone.ZoneStatus
 
 metadata {
 	definition (name: "NYCE Open/Closed Sensor", namespace: "smartthings", author: "NYCE") {
-    	capability "Battery"
+		capability "Battery"
 		capability "Configuration"
-        capability "Contact Sensor"
+		capability "Contact Sensor"
 		capability "Refresh"
-        
-        command "enrollResponse"
- 
- 
- 		fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3010", deviceJoinName: "NYCE Door Hinge Sensor"
+		capability "Health Check"
+
+		command "enrollResponse"
+
+
+		fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3010", deviceJoinName: "NYCE Door Hinge Sensor"
 		fingerprint inClusters: "0000,0001,0003,0406,0500,0020", manufacturer: "NYCE", model: "3011", deviceJoinName: "NYCE Door/Window Sensor"
-        fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3011", deviceJoinName: "NYCE Door/Window Sensor"
-        fingerprint inClusters: "0000,0001,0003,0406,0500,0020", manufacturer: "NYCE", model: "3014", deviceJoinName: "NYCE Tilt Sensor"
-        fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3014", deviceJoinName: "NYCE Tilt Sensor"
+		fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3011", deviceJoinName: "NYCE Door/Window Sensor"
+		fingerprint inClusters: "0000,0001,0003,0406,0500,0020", manufacturer: "NYCE", model: "3014", deviceJoinName: "NYCE Tilt Sensor"
+		fingerprint inClusters: "0000,0001,0003,0500,0020", manufacturer: "NYCE", model: "3014", deviceJoinName: "NYCE Tilt Sensor"
 	}
- 
+
 	simulator {
- 
+
 	}
- 
+
 	tiles {
 		standardTile("contact", "device.contact", width: 2, height: 2) {
 			state("open", label:'${name}', icon:"st.contact.contact.open", backgroundColor:"#ffa81e")
@@ -273,23 +274,28 @@ private List parseIasMessage(String description) {
 	return resultListMap
 }
 
+/**
+ * PING is used by Device-Watch in attempt to reach the Device
+ * */
+def ping() {
+	return zigbee.readAttribute(0x001, 0x0020) // Read the Battery Level
+}
+
 def configure() {
+	// Device-Watch allows 2 check-in misses from device
+	sendEvent(name: "checkInterval", value: 60 * 12, displayed: false, data: [protocol: "zigbee", hubHardwareId: device.hub.hardwareID])
+
 	String zigbeeEui = swapEndianHex(device.hub.zigbeeEui)
 
-	def configCmds = [
-			//battery reporting and heartbeat
-			"zdo bind 0x${device.deviceNetworkId} 1 ${endpointId} 1 {${device.zigbeeId}} {}", "delay 200",
-			"zcl global send-me-a-report 1 0x20 0x20 600 3600 {01}", "delay 200",
-			"send 0x${device.deviceNetworkId} 1 ${endpointId}", "delay 1500",
-
-
+	def enrollCmds = [
 			// Writes CIE attribute on end device to direct reports to the hub's EUID
 			"zcl global write 0x500 0x10 0xf0 {${zigbeeEui}}", "delay 200",
 			"send 0x${device.deviceNetworkId} 1 1", "delay 500",
 	]
 
 	log.debug "configure: Write IAS CIE"
-	return configCmds
+	// battery minReportTime 30 seconds, maxReportTime 5 min. Reporting interval if no activity
+	return enrollCmds + zigbee.batteryConfig(30, 300) + refresh() // send refresh cmds as part of config
 }
 
 def enrollResponse() {
@@ -334,7 +340,8 @@ Integer convertHexToInt(hex) {
 
 def refresh() {
 	log.debug "Refreshing Battery"
-	[
+	def refreshCmds = [
 			"st rattr 0x${device.deviceNetworkId} ${endpointId} 1 0x20", "delay 200"
 	]
+	return refreshCmds + enrollResponse()
 }
diff --git a/devicetypes/smartthings/tyco-door-window-sensor.src/tyco-door-window-sensor.groovy b/devicetypes/smartthings/tyco-door-window-sensor.src/tyco-door-window-sensor.groovy
index a90ce2e..98f75a0 100644
--- a/devicetypes/smartthings/tyco-door-window-sensor.src/tyco-door-window-sensor.groovy
+++ b/devicetypes/smartthings/tyco-door-window-sensor.src/tyco-door-window-sensor.groovy
@@ -16,7 +16,7 @@
 import physicalgraph.zigbee.clusters.iaszone.ZoneStatus
 
 metadata {
-	definition (name: "Tyco Door/Window Sensor", namespace: "smartthings", author: "SmartThings", category: "C2") {
+	definition (name: "Tyco Door/Window Sensor", namespace: "smartthings", author: "SmartThings") {
 		capability "Battery"
 		capability "Configuration"
 		capability "Contact Sensor"
diff --git a/smartapps/smartthings/hue-connect.src/hue-connect.groovy b/smartapps/smartthings/hue-connect.src/hue-connect.groovy
index d793cf4..d39d451 100644
--- a/smartapps/smartthings/hue-connect.src/hue-connect.groovy
+++ b/smartapps/smartthings/hue-connect.src/hue-connect.groovy
@@ -37,7 +37,10 @@ preferences {
 
 def mainPage() {
 	def bridges = bridgesDiscovered()
-	if (state.username && bridges) {
+
+	if (state.refreshUsernameNeeded) {
+		return bridgeLinking()
+	} else if (state.username && bridges) {
 		return bulbDiscovery()
 	} else {
 		return bridgeDiscovery()
@@ -102,13 +105,22 @@ def bridgeLinking() {
 
 	def nextPage = ""
 	def title = "Linking with your Hue"
-    def paragraphText
+	def paragraphText
 	if (selectedHue) {
+		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. "
-    } else {
-    	paragraphText = "You haven't selected a Hue Bridge, please Press \"Done\" and select one before clicking next."
-    }
+		}
+	} else {
+		paragraphText = "You haven't selected a Hue Bridge, please Press \"Done\" and select one before clicking next."
+	}
 	if (state.username) { //if discovery worked
+		if (state.refreshUsernameNeeded) {
+			state.refreshUsernameNeeded = false
+			// Issue one poll with new username to cancel local polling with old username
+			poll()
+		}
 		nextPage = "bulbDiscovery"
 		title = "Success!"
 		paragraphText = "Linking to your hub was a success! Please click 'Next'!"
@@ -915,8 +927,15 @@ private handleCommandResponse(body) {
 					updates[childDeviceNetworkId]."$eventType" = v
 				}
 			}
-		} else if (payload.error) {
-			log.warn "Error returned from Hue bridge error = ${body?.error}"
+		} else if (payload?.error) {
+			log.warn "Error returned from Hue bridge, error = ${payload?.error}"
+			// Check for unauthorized user
+			if (payload?.error?.type?.value == 1) {
+				log.error "Hue username is not valid"
+				state.refreshUsernameNeeded = true
+				state.username = null
+			}
+			return []
 		}
 	}