You only need to activate this once and all the information is stored on our activation server with the information supplied from the User registration form within the GUI that was completed. Just make sure that your system has a proper gateway and DNS if not it will state "Can not connect to Open-E server". You should see the statement in Product activation: Info : This product is activated for xxx. Even if you try to activate with the same credentials this will inform you that this has already been registered. So all is stored and we can even provide you your password if you have lost it by entering in your email address in the "I have forgotten my password" section.