Xfinity says no issues on their end. When I try to factory reset, it just automatically connects back to Xfinity again, no configuration needed. I’ve tried holding the reset button for 10 seconds, 20 seconds, and 35 seconds (both with the coax connected and without). 
 

Connecting via Ethernet does not work either. I get an error saying the DHCP is unavailable. 
 

Any suggestions before I go insane?