I hear you guys, I'm also a Comcast broadband user. Recently, there was a problem with cable wiring to my modem and I called tech support since I was unable to get a cable signal. They were never able to get anywhere near the point where my problem could be solved. They basically just asked what lights are on in the modem and other useless stuff.
After a week on 28.8 off my precious cable, they sent a guy out who fixed it simply be switching a cable and adding some splitters in the other room.
