I have no problems connecting to Playstation online.. BUt i cannot connect to Graw2 mulitplayer online server. it says network service error .. Operation failed..

Can someone please tell me what the problem is ?
I just bought this game from bestbuy.. and was looking forward to playing online.

I am having the same problem today, when I DID get on, there were only 2-3 lines open, ansd the server connections were being dropped constantly. Not sure what is up, but I am still tryignto get back on to no avail.