Media center cannot setup extender Wrt54GS v.7

[Grasshoppa]

I have a PC running windows 7 and a xbox 360 setup wireless through a WRT54GS V.7 with latest firmware. I cant seem to connect media center or stream to my xbox. Every time I try to connect through media center i get an error saying cannot setup extender.I have set all the ports on my router and enable multicasting and upnp. I have also enable streaming to all devices in wmp12 and allowed my xbox in sharing and enabled 40 56 bit encryption with no luck. I was able connect media center to my PC with a Ethernet cable hard wired without any problems at all.

It seems to me that my router is causing the problem. but the weird thing is 3 days ago with the same hardware I was able connect to media center through vista without any problems. I am lost and out of Ideas. I would greatly appreciate any input on this issue.

 

[Grasshoppa]

9 hours later

It was my stupid wierless card. I had a usb wireless so i pluged it in and my xbox detected it right away. Little sluggish in movement but it works thats all that matters