Got back to this now, network is expanding and I am working on adding another coordinator.
I installed a second instance of the ZigBee2MQTT based on the readings I have done. The installation worked.
I am using LAN coordinators.
The current one works great, this is the setup I have under the serial configuration.
port: tcp://192.168.xx.yy:6638
Under Network (still ZigBee2MQTT configuration page), I am using 8485 (default)
I need to setup have a second LAN coordinator now for the second instance.
The only change I made to the configuration is changing the base topic and the channel.
When I tried to start it, gives me the error that the port 8485 is used.
Failed to start add-on
Port ‘8485’ is already in use by something else on the host.
Any ideas? I am not an expert so wanted to see what the right way or proceeding is