Most recently, My zigbee coordinator (CC2652R firmware ver.20220219) randomly stops running. It seems to run continuously for 1-2 day max. I have this coordinator for 1.2 years and it never stops running all of a sudden.
It started when I have updated to HA core 11.5 and update zigbee2mqtt add to 1.28.4-1. I have checked the Ha logs and there is no pertinent errors. Nothing in the zigbee2mqtt logs either. How to troubleshoot this further.
I have tried changing usb port (no go) and now have added a usb extension cord. Will see if this works after a day or so.
You ever figure out what was going on with this? I’ve been dealing with silimar symptoms with the exact same error. I’ve tried updating the stick, resetting the NVRAM, turning off modemmanager and hciuart services, and a bunch of other stuff. This has been an issue for me since before your post. My instance of z2m is installed on a pi and not in docker.