hey guys just recently bought MW2 and cannot connect to psn in the game i keep signing me out. i got in once by luck but now i cant get in. i downloaded online demos and i was able to play them but i cant play MW2. Any ideas?? Can it be my disc?? 
 
Thanks,

Maybe you declined an update? You need all current updates to play online. Other than that, all I can imagine the problem being is your net.

i have all updates i called sony they took me through every thing. but still no fix as i said i played once. and i also have my ps3 in dmz. i can play xbox with no problem.

" Maybe you declined an update? You need all current updates to play online. Other than that, all I can imagine the problem being is your net. "

I have 80% on my ps3 for strength sony said that is good enough. and my speed is 2.6mb/s dl and upload is 0.64 mb/s. so my internet is fine

bump please help

 Your NAT type maybe.

"  Your NAT type maybe. "

Have you tried any other games?

" Have you tried any other games? "