When i am playing crysis 2 on my PC, my brother can't play any online EA games on his xbox 360. Is there a quick fix whereby he can play his EA games and i can play my Crysis 2 game?

The error on the xbox is that it signs him out of xbox live and displays a message that no EA serves can be found at this time. I have looked into changing the port number which my PC accesses the EA serve but i am unsure about changing the port in case it affects the whole of the crysis 2 online play.

Or is it a fact of life that EA cannot supply good serves, for any platform, which don't have conflict such as famously on the PSP?

THE ONLY people who would dare put "Good" will be crysis fanboys who have convinced themselves that there is nothing wrong with the game.