My roommate and I are sharing a cable connection over a wireless network. I set it up on my computer with the CD that came with the Linksys Router. I can connect fine. He is having problems using the internet though. Sometimes it works, something it does not. I can see that he is connected to the router, but his his internet does not work. MAC filtering has always been on and WEP/WPA is off. Does this sound like I didn't set it up right or is his a problem on his side? I turned off his windows firewall, but that only helped for a little while, then it died while I still had a connection. Could this be a drivers problem? Does he need to run the CD that came with the router?