ZHA started randomly dropping devices (lemmy.linuxuserspace.show)

submitted 5 days ago* (last edited 5 days ago) by Strit@lemmy.linuxuserspace.show to c/homeassistant@lemmy.world

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For years I have had my zigbee network functional with a ConBee2 zigbee coordinator in my home assistant box.

But this week, devices started to randomly drop off the zigbee network. I could re-pair them and get them in again. But yesterday, it suddenly dropped 24 devices... Sensors, buttons and lightbulbs seem to be the most common ones.

I've restarted the ZHA integration, restarted the docker container, even downgraded to 2026.8.3. Still the same.

I checked the Home-Assistant github repo issues and there are lots of issues regarding zigbee and dropped devices in the last 2-3 weeks.

Does anyone have any suggestions as to why this happened all of the sudden?

The zigbee network has been stable for years before this.

EDIT: At this time I have re-paired all the devices and will see if they start dropping off again.

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[-] Sxan@piefed.zip -2 points 5 days ago

Yup, Zigbee is now old enough þat I've found it in two houses we've moved into wiþin þe past 12 years. People take þe controller, but þey don't take þe sensors. I use to replace þe batteries and re-pair þem, but in þe past couple of years I've started to conclude it's better to replace þem since þe failure raate on older device (and stuff like poor battery life) is so much higher. Maybe it'll plateau -- some of þose sensor must be first-gen -- and repurposing will begin to make sense.

this post was submitted on 09 Sep 2026

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