About a week ago, we had a power outage followed by 2 brown outs. After which everything that was Zwave showed up and operational in about an hour. However, my larger Zigbee device group hasn't recovered. I have completed 3 separate rebuilds, I had also read to change the power setting and wait 24 hrs, and finally I shut down the hub for over 30 minutes and waited a full 24 hrs to see if the devices returned. I also read to put the dropped devices in paring mode and run the add devices. I did this for 5 of the devices, it found them but it wasn't until they randomly turned themselves on in the middle of the afternoon 3 days later that they are now working BUT they have randomly fallen off the network also.
I have 18 devices, bulbs and motion sensors.
All of them are visible in the device manager, but the full device list has never fully recovered and some that have keep dropping off randomly.
I am not sure what else to do. Any suggestions would be appreciated!
Are any of your Zigbee devices powered by the mains outlets. If so, they also serve as repeaters.
We had an ice storm this past winter that caused a lengthy power failure and a few brownouts. The outage damaged several of my Zigbee smartplug/repeaters. Of course, the battery powered devices were not affected directly, but any that were using the affected repeaters went offline unless they could find an alternate route.
My cable modem, router, network switch, Hubitat hub and Lutron and Hue bridges are all on a Uninterruptable Power Supply. After the lights went out, I was able to power down those devices in an orderly manor to avoid problems. After replacing the damaged smartplugs, everything was OK again.
If your Hubitat hub was not on a UPS for power backup, there is a possibility that the hub database was damaged by the power interruption and surges. Check each of your mains powered devices to see if they are working properly. If you have smartbulbs that serve as repeaters (some brands, but not all do), you need to check them as well. Any devices that were damaged need to be replaced as they will mess with the Zigbee mesh.
Attached is the chart for my network, All my devices are shown but most are still not working. Everything is powered except the motion sensors and they are working sporadically. Using the example LR1, 2, 3, which are lights won't respond at all but come on when I cycle the power.
Many Zigbee bulbs (Cree and Osram/Sylvania among them) will always turn on when power cycled, regardless of whether they are joined to any network (they will default to acting like dumb bulbs).
Unfortunately, the Zigbee Network Graph can show links which no longer exist (as shown in your post; assuming the Master Motion Sensor is an end device, it can have only a single active link to one parent device-- never two links as shown in the graph). The Network Graph may also show devices that used to be active neighbors (but aren't currently) until they get evicted from the hub's neighbor table... so you can't depend on that picture to help you troubleshoot.
It's better to look at recent output from the getChildandRouteInfo page (AKA yourhubsIP/hub/zigbee/getChildAndRouteInfo); from that you can tell if there are any neighbors that are currently active (they'll be shown with nonzero outCost numbers). Devices in the neighbor table that show 'outCost:0' aren't actively communicating their status to the hub and are either out of range (maybe due to some other intermediate repeater being offline) or are no longer joined to the hub.
It's possible that the power failure and brownouts caused some of the bulbs to become unpaired (I've had that happen before). If the hub was relying on them as neighbor repeaters (and the motion sensors were using them for parent devices) they might not be joined to your network anymore, in spite of what the Zigbee Network Graph is showing.
