Thanks for you replys guys

!
I use a router to connect to the internet, yes, and a firewall (ZoneAlarm Pro).
But all my settings are letting SH3 to access the internet normally.
So i guess, as moose67 said, the problem is that the multiplayer is quite a bit deserted. I'm enjoying the carrier for now, so that's ok for now... Well when my urgue for multiplayer comes back again, i'll consider getting SH4. Thanks guys!
Sail Smart