About three days ago we purchased the Pace 4111N dsl gateway from at&t since our 2wire gateway became obsolete. Ever since then i am constantly disconnected from xbox live or can't connect at all. When i manage to stay connected i try accessing the avatar store or try playing battlefield 3 and i immediately lose connection while the gateway's service light gives out and the broadband light starts blinking red even if i connect directly to the gateway. The gateway's lights go green after a couple a minutes. I have tried just about all the troubleshooting steps like restarting the gateway, restoring the xbox to factory defaults, and changing the wireless security. I apologize if this has been asked before but i could use some help.