Amid the other problems I'm having with my Xbox 360 and Xbox Live, this morning I seemed unable to recover my gamertag. When I did the network diagnostic, I found that the NAT settings came up as "Moderate" (on the Xbox Live scale of "Strict," "Moderate," and "Open," you really need that to say "Open").
To make it read "Open," you need to forward the following ports through your router to your Xbox (which means you'll also need a static IP address on your Xbox):
* UDP 88
* UDP 3074
* TCP 3074
Lucky for me, PortForward.com has some great free how-to articles on setting up just that. Here's the guide to setting up a static IP address on your Xbox 360 http://portforward.com/networking/staticip-xbox360.htm and the guide for Xbox Live port forwarding on a Linksys WRT54G. http://portforward.com/english/routers/ ... ve_360.htm
By no means im i advertizing for that site, itjust has helpful links
