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.

  • Mikelius@lemmy.mlEnglish
    1·
    2 months ago

    This started happening to me a little while ago and slowly got worse and worse (re initializing devices didn’t stick and I even went as far as buying a new ZigBee stick). While it ruined a weekend, I migrated everything to Z2M. To date, not a single device has dropped from the network. Zha has definitely borked something.

    I’ve tried reporting issues before with other HA things, but have always got the “not my problem” treatment from frenck, so I just went straight to migrating to Z2M instead of bothering this time lol

  • hendrik@palaver.p3x.deEnglish
    1·
    2 months ago

    Hmm. Coincidentally I had my Zigbee network break apart on the weekend as well. I have a different Zigbee radio, but I’m using ZHA as well. I restarted everything, turned the Zigbee devices off and on again (including removing the batteries from some switches and motion sensors) and now it seems to be working again.

    Dunno if Home Assistant is experimenting with some AI-assistant refactoring or something… But I tend to run into issues lately. 2 weeks before that my OpenWRT device tracker stopped tracking half of the devices. It still does some IP addresses for some reason ¯_(ツ)_/¯

  • MuttMutt@lemmy.worldEnglish
    0·
    2 months ago

    Never dealt with anything like that but I’m using a Sonoff Dongle-E myself.

    I would wonder is maybe you are at a device limit or maybe have a device that is throwing errors. A Dongle-E is running 25.00 on Amazon. The newest version the Dongle-P is 40. It’s a small price to pay to test things against and even potentially solve the problem. Update the firmware to the latest version and transfer 1 Device to it. Every couple weeks switch another. If you have a dropout on the new one you know it could be a device in that pool having an issue or the zigbee coordinator at fault.

    And while the design device threshold is pretty high design vs reality are two different things. A lot of people have issues with more than a handful of wifi devices but theoretically there should be no issue or limit, this also depends on if a person is using cheap residential or commercial grade hardware. If things stabilize after you transfer a few devices that may be the issue. I would spit them in half and move on with my day.

    • Strit@lemmy.linuxuserspace.showOPEnglish
      1·
      2 months ago

      I could be close to the limit, I have about 46 devices on the ConBee2. But it is a new problem, I would have thought this would be happening as soon as I started nearing the limit, not months after it.