Quote Originally Posted by Deaf Pimp
Have you guys disconnected the power from the cable modem and plugged your computer back in? When you hook directly to the cable modem, they register that device to their network. So if you plug in another device, that is the exact symptoms you'll get. Once you power cycle the cable modem you should be able to grab an IP.

Then of course, if it doesn't you got other issues.
shhhh DP I need money to pay off my speeding ticket...