I have unplugged the cable box let the info download both for the TV and the broadband when both are up and running we get 2 light on the box. Only one light for the TV is showing the other is flashing so I think I have either a download problem from the cable provider or the box is playing up.
That's happened to me several times, but the unplugging has always solved it...did you unplug it from your computer too?
Nix my request to know what is happening with your cable. I just found the answers.