@asjmcguire No it was plugged directly into my NUC. I was afraid the solar flare last night had cooked my conbee.
But I believe I managed to isolate it to probably user error. I must have messed up somewhere while trying to troubleshoot the problem.
In the end I was barely even able to get Zigbee2mqtt to communicate with the mqtt broker, within the same network and without firewalls. Even on a brand new virtual machine.