xraided is right homie, u have to use MS's adapter. i have both a linksys and netgear usb adapts and tried both out for the heck of it. you could however buy a wireless gaming bridge. that works since you're connecting thru the ethernet port. but like white devil said, wired shit is the best. i'd rather drop 25 bucks on a 100 ft of ethernet cable and run thru the house etc. your connection will always be great and is really the cheapest way to go if since you already have a router.