It started happening since i updated mw3 (Last one , [1.16 i believe]) i join games and i can only play for 4-5 minutes, then it start lagging and get disconnected  getting the error (Server connection timed out) , it hapens in every game mode...

Its getting pretty annoying .... i have restarted ps3 , unplugged ps3 , rebooted router and modem , HARD reboot of router , disabled the firewall for a sec(i got it back to enabled, because it still hapening), My NAT type is Open  and is the first time it happens to me    

PLEASE HELP!

xH2Ohhh