I have this problem in which i play zombies for a while, get to round 7 or so, and then the game pulls me back to the menu. It says that "You have been disconnected from the Call of Duty Black Ops II servers." and when i try to go back to "online" again i get that "the Call of Duty Black Ops II servers are not available at this time." i can fix by restarting but the same things happen again and again. Its not a pc preformance thing, i know that.