I finally got the network to work.
First point: I had to re-install Qubes, combining the sys-net & sys-usb into one, so that I could get a USB ethernet working.
The settings that worked on this machine:
USB Ethernet
Manual configuration.
IPV4
Be sure to enter the network details exactly as the Qube settings shows.
Turn off, “make network available for other users”.
I haven’t tested wifi yet. Ethernet pass thru is what is working. (I avoid wifi whenever possible.)