I am getting this too. It just started. Although I haven't turned it on in about a week...it still was woking fine and now I am getting MTU error also during the 360 network dignostics check.
Well today live is offline bcoz of maintainance, but before that i could get online just fine. Even after adding the necessary ports for port forwarding it still didn't work, so i used manual settings for DNS and IP bcoz i had a PC that was alreafy using an ethernet connection(maybe IP conflict) so ws soon as i manually changed the IP it started to work, you guys try that
heres a pic:
for the last digit of the IP addres i changed mine to another number for my xbox live and it worked..........
Thanx for the reply...I already run with a static set up. I changed the IP just to see if it was some local routing issues with no luck. Still the MTU issue. Any other suggestions would be appreciated...
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