Call Of Duty - Modern Warfare 4 Freeze.

[#1]

Hi Playstation,

I bought a copy of Call of duty modern warfare 4 last week, all the week the game worked perfectly and there weren't any problems.

But today there was a little surprise to me, when i connect to the game, and press the "Play Online" button' the game freezes for 2-3 seconds, and the system transfer me back to the XMB menu.

I tried few solutions like :

Add ports.

Restore system.

Delete all saves and data.

I would like to recive a solution from one of the members.

Best Regards,

Roey.

[#2]

Try to play it with a different account and open DMZ on your router by using ps3's IP.