Friend can't connect to games and etc, I host but others can?

[nosebleedXD]

So basically, when i host like a game like a cs game or a warcraft 3 game or ventrilo server or anything else etc...

my friend can't connect to my ip. When he host games and such, i can't connect to him either. the problem is other people can connect to us but just we can't connect to each other so i think its a problem connection between us

anyone ever experienced this problem?

btw my ports should be fine cause others can join

 

[DelJo63]

As 'others can join' your hosted games except one buddy, suspect that the IP address
is blocked on your system OR
your buddy's ISP is blocking the required port.