Since last Thursday I did not I connect in multiplayer mode, when I try to Feedback following appears:

"No network connection detected. You must have an active network connection to play online or over a local network."

I can log into psn​​, but not in MW3's multiplayer. I've tried everything that was within my reach and nothing.

Anyone ever had this problem? Gamers know how sad it is running out of play for nearly a week, heeelp me ! T_T

ps: there are questions similar forum posts but not specifically like mine.