Why wont the battlefield 3 beta work on my ps3?

I downloaded the beta today and every time I press find game it instantly says could not find a server to join|||Not sure, only know that the beta only goes until the 10th of October.|||most likely due to them still tweaking the servers, or high server activity. it does take a while sometimes for the game to place me in a match. dont worry too much though. just keep trying