We are making progress finding a solution for the issues you're facing today. Currently, we want to provide a solution for you, which will allow you to have a good experience with ANNO 2070: Please start the offline mode of the game. When you are in the main menu of ANNO 2070, try to login with your account data. Soon you will notice that you can play online now.
We apologize for the inconvenience and will keep you updated through our forums and twitter account