Sorry to post a problem here but this seems a very “ZigBee Educated” thread.
I posted this in another thread but didn’t really get an answer.
Home Assistant docker (latest version)
Conbee II (latest firmware)
ZHA (I recently switched from DeCONZ to see if this would help the problem but it didn’t)
Philips Hue bulbs (mainly)
Philips Hue motion sensors (x4)
Philips Hue smart button (only 1)
Aquara Temperature sensor
Aquara Switch sensor
Trafri GU10 bulbs (only 2)
Tradfri mains outlet socket
Innr mains outlet socket
All has worked fine for over a year and I have been slowly growing my zigbee devices. Then about 2 months ago (just before I started adding bulbs that were non-Philips Hue) the following issue started.
Power-on a light from a physical light switch that had been previously switched off at the physical light switch. The light would switch on as expected but then the following would happen.
After a small amount of time being switch on (say 30 seconds) the light that was switched on would flash (off then back on) in about half a second. Then anything between 5 and 10secs after that it would do it again. It would repeat this a random amount of times. Sometimes once, sometimes 2,3 4, 5 and so on. Sometime this might go on for 5 mins repeating flash, wait, flash etc…
Also a nearby light that was already on may also emit the off/on flash (normally only once but sometimes multiple times).
This was initially just 1 or 2 lights then more started to do this.
I’ve been racking my brain Googling and trying to figure it out and come to the conclusion this is some sort of mesh reconfigure/reset that is going on when the light is powered-on from previously being powered-off. First I noticed lights that had been powered-off (via a physical switch) overnight would do this (others in the family haven’t got out of the habit of switching the light off before bedtime).
Hence a light that had been off for a number of hours was re-announcing itself to the mesh. What’s strange is the “powering-off lights” from a physical switch has always been there but the flashing only started recently,
Also until recently this theory held but then lights that may have been powered off for 20 or so minutes might emit the problem.
Another thing, some light regularly do this from power-on (like almost every time) and other much less frequently and even never.
I switched from DeCONZ to ZHA over the weekend as read somewhere someone saying DeCONZ previously had a similar issue with flashing lights as a light discovered sensors in the mesh. But it still happens in ZHA.
This is obviously very annoying and pretty much halted my HA project as its driving the household mad.
Is this normal behaviour for the lights to flash and under what circumstance might this happen ?
Do I have some sort of issue somewhere ?
How do I troubleshoot and find the problem using ZHA, logging, visualisation etc…
Any help appreciated.
PS. I’ve still got my Philips Hue hub and may move all devices to that temporarily to see if it happens there also.