I have an unusual problem. I am unable to access my vista media center pc from my xbox 360. i can set it up. access it 1 time then never again. current configuration is Dir-655 router (media center in LAN port 1 and Xbox 360 is connected to a netgear fs605 switch in port 1 which the fs605 is in LAN port 2 of the dir-655. now remember i can setup the 360 as an extender,media center accepts the 8 digit key and i can access and navigate media center through the 360 just fine. i turn the 360 off and right back on and cant access it anymore. NOW THIS IS THE KICKER(if i plug the mediacenter into the switch with the 360. i can access it all the time. if i plug the mediacenter into port 1 on dir655 and 360 in any other port on dir655 (wont work).tried different cat 5 cables. reset router, mediacenter and x360. tried different configurations. and setups, still nothing. i can reconfigure the extender again. and it will connect 1 good time and then back to nothing, but if i connect both directly to switch it works like nothing happened, but my dir655 is still my DHCP in this configuration. ALSO before i upgraded to vista (same PC just had XP) it worked fine no matter how i had it setup, through switch or directly through router. any help would be greatly appreciated