Cannot connect to Media Center Extender on Xbox 360 (windows 7)

hi there....i am trying to connect my xbox 360 as an extender. i get all the way through the setup and it fails at the last step. i have gone into my firewall and the media extender is ticked to allow. i have also manually set up rules to allow all the ports i found on the microsoft site to be allowed. lastly, i tried the microsoft fix it tool on the microsoft support site. i have run out of ideas. the xbox is definitely on the same network as me, it can see my laptop and also my iomega iconnect when i go into setting and network connections. it tests positively when i test the network connection, but fails when i test the media centre connection.

i have gone through the setup 3 times now (i.e. reset the connection and put in another 8 digit code to set up) but still no luck.

hopefully someone else knows how to fix this? maybe im doing something small wrong and keep overlooking it?

thanks heaps, beck.

I am having the same problems. None of the solutions I have found anywhere have worked. I can setup the extender on a laptop running Vista using the same router and wireless network. It worked first try. I still cannot setup the extender on desktop running Windows 7 64 bit. Have been able to setup desktop computer and Xbox 360 to work together using PLAYON, so I know they have to see each other on the network. This is very frustrating. It seems like it should be so easy but it is not. Have been trying for several weeks.