Okay, first off, I didn't have them do anything. I just called technical support, which was about worthless. There's nothing wrong with the modem, unless there was a whole bad line of them. My ethernet card is good, as my PC tries communicating with the modem (I see the data light blinking on the modem and the network traffic shows outgoing data). All of the cables are good. My friend's dad works for the cable company and my friend's going to see if he can get him to take a look at it.