Zigbee Topology

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Hi All.

I’ve been having issues with Zigbee devices dropping connection and being intermittent.

I’m using the sonoff usb stick with stock ZHA.

The devices were working fine but have started to show as not viable for say 20 hours etc

Can anyone tell me what the topology is supposed to look like?

Should everything be connected direct to the usb router?

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Thanks

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No. Most devices should be connected to the coordinator via routers (mains-powered devices). Messages sometimes take several “hops” to reach it. The coordinator can connect directly, but it shouldn’t be doing it for more than a small number of devices.

Bear in mind that connections change all the time. Each device should automatically switch to the best available route. The ZHA map is only a snapshot of the network, and it contains all possible routes, not just the ones in use.

If devices are suddenly not connecting, you might look at changes in the environment.

  • Have any of them been moved?
  • Have new ones been added?
  • Are there any new sources of interference? Bluetooth proxies and other wi-fi devices are in direct competition with Zigbee.

Lots of good advice here:

The Home Assistant Cookbook - Index

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Hi Liam, on top of @jackjourneyman his advice, have a look at this extensive zigbee guide from one of the forum users Zigbee network optimization: a how-to guide for avoiding radio frequency interference

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The map doesn’t show much except that you have some disconnected nodes.

In my home, I have a dozen Third Reality Switches that act as routers. No end device is more than two or three meters from a router.

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