I have been trying to set up my broadband internet from comcast for a little bit now. Could someone tell me what I am doing wrong. I have the cable modem set up correctly, plugged the ethernet cable into the airport extreme WAN input, set up the airport base station for DHCP, and connect. I cannot get anything. I am actually connected right now through someone else's wireless connection in my apartment complex. Am I doing this right? Anyone else with comcast? thanks in advance.