I know there is a similar thread that was closed…problem persists.
Updated MacBook Pro 13 inch M1 three days ago to 11.2.2 which includes updates for ports/docks. Ethernet will not work once I connect to USB-C. I have tried rebooting the dock as well as network equipment. In the end I must remove the ethernet cable from the dock to use Wifi and access internet.
NOTE: I have confirmed that the Ethernet adapter has an IP address and have released/renewed