this post was submitted on 01 Jun 2025
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Devices continuously dropping off my ZigBee network (lemm.ee)
submitted 3 weeks 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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[–] MrKurtz@lemm.ee 1 points 3 weeks ago (1 children)

My wifi is on channel 11, while ZigBee is on 15. That shouldn't overlap, right?

[–] mhzawadi@lemmy.horwood.cloud 1 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

15 is right in the middle of both WiFi 1 and 6, maybe not the best channel for ZigBee.

Check out this page https://www.metageek.com/training/resources/zigbee-wifi-coexistence/

[–] MrKurtz@lemm.ee 1 points 3 weeks ago (1 children)

So... It should be good if I am using WiFi 11, shouldn't it? Not sure if I am missing something.

[–] mhzawadi@lemmy.horwood.cloud 1 points 3 weeks ago

Yeah, should be