Ok I have just recently started having problems connecting to xbox live, using the same router that I have used to successfully connect in the past. It is a Westell A90-750015-07. The live ports are forwarded. uPNP is turned on. I am using WPA-2 security. I reset my router earlier today, and after doing so the live started working. After I put all my security in place and forwarded my utorrent port, it stopped working all the sudden. Does anyone have any suggestions? The code from xbox I am getting is that my MTU setting is not sufficient. There is no way to change my MTU on this router I am pretty positive. I can access my network through my xbox, like my shared videos, but it will not connect to internet. If anyone needs anymore information just ask and ill supply right away, I tried to include everything I could think of. Thanks in advance!!!