I was able to find a solution that worked for me.
https://community.home-assistant.io/t/solved-conbee-2-fails-to-connect-to-zha-ha-in-unraid-vm/431276/2#final-edit-my-solution-1
The post is by maxistviews (marked as Solution)
Note:
You will need to remove and readd the the ZHA integration. During the initial configuration of ZHA the Conbee showed up as: /dev/serial/by-id/usb-QEMU_QEMU_USB_SERIAL.....