Just tried to log on to Xbox live and it can't sign me in. I tested connection, it connected to my wireless fine but then it came up with MTU error. It's been fine all day. But my iPad and pc are working fine wirelessly. I don't understand? I tried turning off wireless for 30 seconds as suggested on the error message but still get the same message when I reconnect. Edit Xbox live twitter support pointed me to this page - http://support.xbox.com/en-US/xbox-...k-does-not-have-sufficient-mtu-setting-979104 but I'm having trouble loading the page.