I know there is another thread but to be honest, its not really useable unless you know what you are doing or is out of date. I think its generally true that ch 11 is usually not ideal so at some point it needs resetting.
Can anyone nice do a step by step guide for this, without missing steps (eg where to find the yaml etc) so its easy to follow?
Come to think of it, it should be automatable by an app or similar which would make it very easy. The problem with HA isn’t the logic, its (for an old git used to conventional software) the syntax of yaml etc which is, shall we say, opaque.
As far as I know if you change the channel you will need to reconnect every zigbee device.
As far as zigbee2mqtt the channel is in the settings, change it and restart. No idea about ZHA.
Can’t get any better than the official docs Zigbee Home Automation - Home Assistant