Does anyone have any solid tips on opening up my NAT so that I can connect to more people. I play a lot of XBL but its pretty common for me to have trouble connecting to some people. Both MW2 and Halo: Reach claim I don't have a fully open NAT, and in FIFA 10, I often can't connect.

Things I've already done:
1. Set my 360's IP to "DMZ"
2. Opened up all the ports relative to XBL listed on www.portforward.com

If there's any more suggestions you folks have, I'd appreciate it. For what its worth, I have a Linksys WRT54G router, and my 360 is connected to it wireless.

Thanks.
-Nick C.

strangely, i have gotten it to be "OPEN" (according to MW2). i set my MTU to 1350, which prevented me from getting on XBL, then reverted back to AUTO, and now its at OPEN. i have no idea why its better now, but for now i'm good. sorry for the inconvenience.