I recently upgraded to the Internet 120 package and in doing so was set up with the Cicso DPC3848V modem. Ever since the upgrade, everything has been working fine with one HUGE exception. The Steam Client on any PC or MAC computer on my network will never connect to the Steam servers. It will always throw a connection error and start in "Offline Mode".
I have tried:
- putting PC's into the DMZ.
- disabling the DPC3848V firewall.
- forwarding ports.
Please help! I'm beginning to question whether this router is defective.