Today the Zigbee radio in my C-8 turned off and then back on. This was happening pretty regularly under .113, but it hasn't happened since. I'm on .121, and since updating to that version my Zigbee has been really solid. Even my outdoor Hue Motion Sensor has remained online.
There's nothing in the logs or in stats from Hub Info that would indicate a severe load or other problems.
The zigbee mesh appears to be slowly rebuilding itself. But I'm not sure why this happens or if I should be doing anything when it does.
I exaggerated a bit. I don't have any new devices to add and nothing has dropped since .121. And I was too busy with other things today to mess with anything. I was really surprised when the zigbee radio went offline because nothing really was happening.
After a rocky starty, my Zigbee devices had been largely hanging on o.k. until .123. However since upgrading to .123 I have several devices (not just hues) drop off and have to be mainly re-paried again unfortunately. Just rolled back to .121.
However my zigbee radio has been going offline every hour or so - but can go on and offline several times in an hour - with no indication as to why in the logs (my C8 just holds all zigbee and zwave devices with rules etc. run on other hubs). This has pretty much been the case since I first got the C8 and not related to the latest update.
For instance, its gone on and off 3 times in the last 2.5 hours.