Xbox tp PC Bridge IP Failure

[RazorPython]

when i bridge my friends xbox to his pc and in his room i run the xbox live test it always says ip faliure i am using a

*netgear router (ithink in the w series forgot)
*standard ethernet cable that come with xbox
*xbox 360
*wirless adapter
*ethernet rj45 connection

i have not enabled ICS as when i tried to do that it said LAN is using the ip that gives out the automatic ip adress please help ive been at it for ages let me know if you need more info

also if iwas going to port forward where what ip would i forward it 2 and is therre a way to use the internet on my pc aswell as the xbox when the connections are bridged