Network Manager can be quirky with things that involve changing some drivers not in a repository kernel version.
I agree. That's why I'd prefer to just do something simple from the command line or edit a config file.
run the following: nmcli connection show
Here's what I got:
NAME UUID TYPE DEVICE
FiOS-QW2C2 43e439c1-0deb-4bef-bf29-865d0b1e435a wifi wlp2s0
Ethernet connection 1 9a0f134d-25df-449e-9b5d-91eb6a5d11d0 ethernet --
Wired connection 1 281e9d38-5cd1-32b3-94eb-2a700fffc690 ethernet --
And then run: nmcli connection up 'Wired connection 1' (or whichever you wish to activate)
I tried it and for Ethernet connection 1, and got:
Error: Connection activation failed: No suitable device found for this connection.
After that, I stopped.
Thank you for your help on this.
For the rest of you following this thread, it may be a while before I can try much else. I just got here, and I have a busy weekend planned, but I will get to all the posts. I really appreciate all the help.