Call of Duty: Modern Warfare II Early Access is currently having issues. “You are too early” solution only partially helps.
All pre-orders of Call of Duty: Modern Warfare II can start the campaign early access now.
However, there are currently problems on all systems. If you get the message on the PC that you can’t start it yet, you should restart the client once.
Xbox players who get the message “You are too early” should try a complete restart of the console. But this is no guarantee that it will work afterwards, because the reports are currently different. It worked for some, but unfortunately not for others. For some players it only worked after the fourth reboot.
Is the campaign working for you? Did you perhaps even find a solution?