How to solve connection Problems online?I can connect to most players, but to some of my friends I cant. They can also connect to most players, but not to me or my friends. Something is so strange about trying to connect online to my friends. There's also something very strange when I try to connect to FriendA it works - FriendB also and FriendA can connect with FriendB, but when we all try to connect the game crashes (this standard error about maybe virus or graficcard bla) This happens all the time and always at two of the three computers (not always the same though). If FriendC connects with us so were 4 or anyone else hosts the game the crash doesnt occour!
Anyway - what could it be that I can't connect to certain people (at all) who can connect with others though?