i have forwarted both (TCP and UDP) and the players DON'T get any error message, they just stay visitors and are not able to join.. it's like their keyboard is plugged out..

most of the time players are not able to join my game if i host one... just 1 or 2 players can join... i had the same problem a week ago when i wanted to join a game.. what can i do so that people can joiny my game ? i tried to restart the game several time but no solution...