this post was submitted on 01 Jun 2025
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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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[–] mhzawadi@lemmy.horwood.cloud 8 points 2 days ago (10 children)

Having moved my home assistant from the middle of my house to a garden shed/office, check your WiFi network is not on channel 1. As that will most likely be the same part of the spectrum as your ZigBee network, if you have your ZigBee on channel 11.

[–] JelleWho@lemmy.world 8 points 2 days ago (3 children)

On another note. A zigbee network is a mesh network set up at pairing. Moving your host around will not re-generate the routes in the network and make your devices drop.

Pair your devices (and hub) in there position they will be in when installed.

I don't know if that's the (entire) story -- the mesh is supposed to occasionally reroute based on the link quality of the individual nodes and the repeaters they can see.

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