Devices continuously dropping off my ZigBee network (lemm.ee)

submitted 1 week ago by [email protected] to c/[email protected]

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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:

Use a USB extender instead of connecting the Conbee III directly to my NAS.
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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[-] [email protected] 2 points 1 week ago

I use Z2mqtt and still get random powered devices showing as unavailable. Too bad there isn’t a “ping” feature like ZWave.

Nothing moves, and yet I get random unavailable devices that come and go randomly.

I guess I need to check my WiFi channels. One of my biggest complaints around Zigbee vs ZWave. I don’t have these issues with my ZWave devices.

this post was submitted on 01 Jun 2025

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