My xbox live will not work. It shows Network: connected, Internet: connected, Xbox Live: connected, service: up, xbox stores: up, accounts: up, marketplace: up.
I can stream videos etc on the xbox, but when I attempt to join a game it just searches and searches, or on Halo 4 it says the server is unavailable.
My NAT is open. My MTU is at 1500 and there is no fragmentation. I have tried both wired and wireless. I have a linksys WRT54G (FW: v8.00.7 build 011). I am in Canada. My ISP is Xplornet (Its a 900 Mhz wireless technology, as I am in the country), they say there are no ports blocked. I can play online PC games fine. Speeds are around 3 Mbps down and .512 up.
However I cannot play here and have never been able to. My xbox works on other network setupds (other locations).