Can't Connect Through Ethernet After Getting New Internet

Hedgieman

Honorable
Aug 9, 2013
14
0
10,510
I had AT&T DSL High Speed Internet, but just switched to TWC Internet. It came with the SBG6580 Modem. I can connect to my desktop fine wirelessly, but not through Ethernet. It was working fine literally 1 day before I got my new Internet. Why can't the SBG use my Cat5 Ethernet?