Ok well i have a 2 PS3's and they are both on the same wireless router, and me and my brother play black ops alot. Ever since PSN came back online it has been acting up. It will let me and him be in the same party. But it wont let us join my other friend in his party. I can join the party withoutt my brother but as soon as my brother joins it kicks me out of the party. Then i have to go all the way back to the main menu before i can join something else. It acts like it wants to let me join while he's in the party, but then i back out to the main menu, and when i come back and hit multiplayer a message says, Unable to join game session.. Please Help!.