Cannot play multiplayer on PS3

Hi guys.

On 02/03 i got premium and everything went smoothly, but then i downloaded China Rising. Next day, after instaling, i couldn't access anything related to multiplayer, won't pass the initial menu. After a long loading, it displays this message: "You have lost connection to the EA Servers. Online features will be unavailable."

I went through some topics of people with this similar problem and tried some of the things that seems to have fixed their problems, as such download the expansion again, delete the Game Data and try to play, but nothing worked. It still shows the same message.

I'm really bummed because i got premium and i couldn't play at all...

So, what should i do?