Z-wave dimmer node not communicating

One of my Fibaro dimmer modules is causing me some issues (the other 20 or so seem fine)… It’s showing up as “OFFLINE - COMMUNICATION_ERROR”. I removed it and re-added it via the PaperUI inbox… but it still won’t communicate.

Any suggestions for what to try next? Remove from the z-stick and re-add from scratch?

Logs look like:

==> /var/log/openhab2/events.log <==
2020-10-23 16:48:43.735 [me.event.InboxRemovedEvent] - Discovery Result with UID 'zwave:device:9412cbc8:node66' has been removed.
2020-10-23 16:48:43.750 [hingStatusInfoChangedEvent] - 'zwave:device:9412cbc8:node66' changed from UNINITIALIZED to INITIALIZING
2020-10-23 16:48:43.766 [hingStatusInfoChangedEvent] - 'zwave:device:9412cbc8:node66' changed from INITIALIZING to OFFLINE (BRIDGE_OFFLINE): Controller is offline
2020-10-23 16:48:43.779 [hingStatusInfoChangedEvent] - 'zwave:device:9412cbc8:node66' changed from OFFLINE (BRIDGE_OFFLINE): Controller is offline to OFFLINE (COMMUNICATION_ERROR): Node is not communicating with controller
2020-10-23 16:48:43.781 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:9412cbc8:node66' has been updated.
2020-10-23 16:48:43.787 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:9412cbc8:node66' has been updated.
2020-10-23 16:48:43.798 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:9412cbc8:node66' has been updated.
2020-10-23 16:48:43.893 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:9412cbc8:node66' has been updated.
2020-10-23 16:48:43.894 [vent.ConfigStatusInfoEvent] - ConfigStatusInfo [configStatusMessages=[]]

==> /var/log/openhab2/openhab.log <==
2020-10-23 16:48:43.762 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - Initializing ZWave thing handler zwave:device:9412cbc8:node66.
2020-10-23 16:48:43.765 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Controller status changed to ONLINE.
2020-10-23 16:48:43.766 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Controller is ONLINE. Starting device initialisation.
2020-10-23 16:48:43.777 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Updating node properties.
2020-10-23 16:48:43.785 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Updating node properties. MAN=271
2020-10-23 16:48:43.786 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Updating node properties. MAN=271. SET. Was 271
2020-10-23 16:48:43.786 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Channel zwave:device:9412cbc8:node66:switch_dimmer1 linked - polling started.
2020-10-23 16:48:43.788 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Properties synchronised
2020-10-23 16:48:43.803 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Update ASSOCIATION group_ZWaveAssociationGroup [index=1, name=Lifeline, profile1=0, profile2=1, associations=[node_1_1]]: Adding Controller (node_1_1)
2020-10-23 16:48:43.804 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Configuration synchronised
2020-10-23 16:48:43.892 [DEBUG] [ve.internal.protocol.ZWaveController] - Event listener added.
2020-10-23 16:48:43.893 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising Thing Node...
2020-10-23 16:48:43.894 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:scene_number for DecimalType
2020-10-23 16:48:43.895 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:scene_number for DecimalType
2020-10-23 16:48:43.896 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:sensor_power for DecimalType
2020-10-23 16:48:43.898 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:sensor_power for DecimalType
2020-10-23 16:48:43.900 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:meter_kwh for DecimalType
2020-10-23 16:48:43.900 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:meter_kwh for DecimalType
2020-10-23 16:48:43.901 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:meter_watts for DecimalType
2020-10-23 16:48:43.902 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:meter_watts for DecimalType
2020-10-23 16:48:43.903 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:meter_reset for OnOffType
2020-10-23 16:48:43.904 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:meter_reset for OnOffType
2020-10-23 16:48:43.905 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:config_decimal_param19 for DecimalType
2020-10-23 16:48:43.906 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:config_decimal_param19 for DecimalType
2020-10-23 16:48:43.907 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:config_decimal_param26 for DecimalType
2020-10-23 16:48:43.907 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:config_decimal_param26 for DecimalType
2020-10-23 16:48:43.908 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_heat for OnOffType
2020-10-23 16:48:43.909 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_heat for OnOffType
2020-10-23 16:48:43.910 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_power for OnOffType
2020-10-23 16:48:43.911 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_power for OnOffType
2020-10-23 16:48:43.912 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_system for OnOffType
2020-10-23 16:48:43.913 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_system for OnOffType
2020-10-23 16:48:43.914 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:switch_dimmer1 for OnOffType
2020-10-23 16:48:43.915 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:switch_dimmer1 for PercentType
2020-10-23 16:48:43.916 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:switch_dimmer1 for PercentType
2020-10-23 16:48:43.917 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:switch_dimmer1 for PercentType
2020-10-23 16:48:43.918 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:sensor_power1 for DecimalType
2020-10-23 16:48:43.918 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:sensor_power1 for DecimalType
2020-10-23 16:48:43.919 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:meter_kwh1 for DecimalType
2020-10-23 16:48:43.920 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:meter_kwh1 for DecimalType
2020-10-23 16:48:43.921 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:meter_watts1 for DecimalType
2020-10-23 16:48:43.922 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:meter_watts1 for DecimalType
2020-10-23 16:48:43.923 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_heat1 for OnOffType
2020-10-23 16:48:43.923 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_heat1 for OnOffType
2020-10-23 16:48:43.924 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_power1 for OnOffType
2020-10-23 16:48:43.925 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_power1 for OnOffType
2020-10-23 16:48:43.926 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:alarm_system1 for OnOffType
2020-10-23 16:48:43.927 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:alarm_system1 for OnOffType
2020-10-23 16:48:43.928 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:notification_send1 for DecimalType
2020-10-23 16:48:43.928 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:notification_send1 for DecimalType
2020-10-23 16:48:43.929 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:switch_dimmer2 for OnOffType
2020-10-23 16:48:43.930 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising cmd channel zwave:device:9412cbc8:node66:switch_dimmer2 for PercentType
2020-10-23 16:48:43.931 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:switch_dimmer2 for PercentType
2020-10-23 16:48:43.932 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Initialising state channel zwave:device:9412cbc8:node66:switch_dimmer2 for PercentType
2020-10-23 16:48:43.933 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Polling initialised at 1800 seconds - start in 1540800 milliseconds.
2020-10-23 16:48:43.933 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 66: Device initialisation complete.
2020-10-23 16:48:52.240 [INFO ] [thome.model.script.time-of-day.rules] - Initializing time period. The time of day is Day: Fri Oct 23 16:48:52 BST 2020
2020-10-23 16:48:52.244 [INFO ] [thome.model.script.time-of-day.rules] - Now: Fri Oct 23 16:48:52 BST 2020
2020-10-23 16:48:52.246 [INFO ] [thome.model.script.time-of-day.rules] - Day: Fri Oct 23 07:42:00 BST 2020
2020-10-23 16:48:52.248 [INFO ] [thome.model.script.time-of-day.rules] - Evening: Fri Oct 23 17:47:00 BST 2020
2020-10-23 16:49:16.521 [DEBUG] [wave.discovery.ZWaveDiscoveryService] - ZWave discovery: Stop zwave:serial_zstick:9412cbc8
2020-10-23 16:49:16.523 [DEBUG] [al.protocol.ZWaveInclusionController] - ZWave controller stopping inclusion at IncludeStart
2020-10-23 16:49:16.524 [DEBUG] [ol.serialmessage.AddNodeMessageClass] - Ending INCLUSION mode.

(Using the latest stable OpenHabian on a Pi4 with a z-stick)