MHFU - Can't play with more than 2 players

[kenpled]

Okay, I guess it should be related to this kind of anti-virus-integrated firewall, My friends aren't really good with computers but Iknow they can uncheck an option on a game =) .

Anyway, thank you, I'll be coming back here to tell you more.

Oh wait ! Yesterday two of our party members couldn't be quest leader even when playing two players (these guys didn't deactivate their firewalls), so after deactivation it worked perfectly (they could be quest leaders). But still no chance with 4 players. I'll try to check if any of them has something that could be it...

EDIT : Still doesn't work with all antivirus deactivated, this is getting frustrating...