How do I connect to EA online though Battlefield: Bad Company 2 on the Xbox360?

Whenever I try to join my friend over XboxLIVE on Battlefield: Bad Company 2 it tells me that it couldn't connect to EA online.

I can join regular games fine but it's just when I try to join my friends game that this happens.

Any advice to offer?How do I connect to EA online though Battlefield: Bad Company 2 on the Xbox360?
you can write your online pass if you have one if you dont have one buy one to play online and with your luck you can be a V.I.P from the online pass.

argus