This is strange. Check your connection status under network settings, do you have Nat type 2? If not, you should try enabling upnp on your router and ps3 and if that still doesn't work, open all psn ports on your router. Just google psn port numbers.
If all else fails, put your ps3 in your routers DMZ
"Dr. Tenma, according to you, lives are equal. That's why I live today. But you must have realised it by now...the only thing people are equal in is death"---Johann Liebert (MONSTER)
"WAR is a racket. It always has been.
It is possibly the oldest, easily the most profitable, surely the most vicious. It is the only one international in scope. It is the only one in which the profits are reckoned in dollars and the losses in lives"---Maj. Gen. Smedley Butler
