


With macOS 12.1 running on the 14" M1 Pro MacBook Pro, when the MacBook Pro goes to sleep and then I wake it up a few minutes later, it takes a while for the "Display Ethernet" connection to detect that it has a cable connected to it, and once it detects the cable, it can't get a DHCP lease so it goes to self-assigned IP address .x. I had it cabled to a switch and it worked fine until I upgraded to macOS 12.1. One of the monitors that I have connected to my 14" M1 Pro MacBook Pro is the 27" Apple Thunderbolt Display, which has a built-in Gigabit Ethernet adapter.

Last night I upgraded to macOS 12.1 from 12.0.1, and I'm having issues with Thunderbolt-based Gigabit adapters with the 14" M1 Pro MacBook Pro.
