Playing online against others - Why cant i do it?

[psy-co]

when i try and play someone it says there is an error and goes back to the main menu, but my internet connection is perfect!

[SSJKarma]

if the error is during the synchronization between your opponent and you, then the error is either your computer cannot join in !

either your opponent's game is closed or has started !

for the first option... see if you are behind a router or firewall. if not then it may be only bad luck, try again a few times.

if its the second option... then you cannot do anything about it, its all about your opponent and not you !

to be more precise we'll need the complete error message !