I have tried this but my main zigbee network went down and had a hard time to get it working again.
The 2 coordinators were about 1m from each other, with 2 HA systems, so maybe that’s not a good idea.
Is it possible to run a second zigbee system, just temporarily as a test, in the same area?
Hi, thanks for stepping in!
Of course, just like WiFi multiple networks can exist close to each other and it makes sense that the channels should be different.
Can a second zigbee network bring another down, in a way that it doesn’t restore even after shutting down that second one?
I use two identical zigbee dongles (Sonoff 3.0) about two meters apart. They’re set to two different channels. One uses the ZHA integration & one uses the Zigbee2MQTT. I’ve never had a problem.
What about when you fire up that 2nd coordinator: does the integration/coordinator automatically use another/free channel?
If not, of course it can be changed but what happens with the first mesh when both coordinators are live on the same channel?
Does the first network go down? (temporarily)
I’m asking this because I had to reconfigure 32 devices…
The two different networks even if on the same channel will have different network ID’s and not see each other. However they may well slow each other down if on the same channel.
I do find that the ZHA network is slower to start. (Even though it was first & the antenna placement is a bit better). I also find the Zigbee2MQTT is generally more reliable. Every 6 months or so I lose connection with a sensor on ZHA. Once I’ve deleted it in HA MQTT out competes ZHA in grabbing it. (At least that’s how it feels.)