this post was submitted on 01 Jun 2025
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Devices continuously dropping off my ZigBee network (lemm.ee)
submitted 5 days ago by MrKurtz@lemm.ee to c/homeassistant@lemmy.world
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I recently setup my ZigBee network in Home Assistant, using a Conbee III with deConz on my Synology NAS.

I purchased a few Aqara Temperature sensors and a couple of Mini Switches.

I was able to get them to pair just fine, but they won't remain online for more than a couple days. They then drop off and I can't even reconnect them easily. I need to try to pair them again like 10 times before they come back online.

At this point I don't know if the problem is my network, the Conbee III, deConz, or the Aqara devices.

I don't know much about ZigBee, but a couple things that I tried so far were:

  1. Use a USB extender instead of connecting the Conbee III directly to my NAS.
  2. Bring the devices as close a possible to the gateway. I don't have a big home, so I don't think distance is a factor here, but still, I put of the sensors right next to the gateway, and it would still drop after a while.

Do you have any hints on things to try to get this fixed, or at least identify the problem?

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[–] blargbluuk@sh.itjust.works 2 points 5 days ago

I had a couple of Aqara sensors awhile ago (vibration sensor and door sensors) and they always fell off the network randomly and required re pairing. Aqara don't seem to properly follow the zigbee standard, so unless you're using their gateway there's a good chance it will just stop working - or at least that's been my experience. I replaced them with different brands and haven't had a problem since.

I wasn't clear from your post if most of the devices are Aqara or not but if they're all that brand then I would guess this is your problem.