Connect the xbox to the mobo with a crossover cable, set the mobo LAN to DHCP, bridge the wireles and wired together and the xbox will recieve dhcp from that comptuer. But if you use a wireless card you must have a wireless router. Does the router have an RJ45 port? If so just plug a straight through cale into xbox and the router and away you go. But I don't know that much about xbox's and the such.