If for any reason you need to change your license information for the G Data business products, this must be done on the management server.
Navigate to the G Data folder in the start menu. Click on the Management Server, and then Internet Update. On Server 2012, you can just search for Internet Update.
When the window opens, you will be shown your current access data. If you already have your new access data, you can enter it here. If you do not, hit the Online Registration button. Fill out all of the information on the screen that you are presented, including the new registration number. Once this has been completed, you will be presented with your new access data. Be sure to save this somewhere! It should automatically update the credentials on the Internet Update main screen after you do this. If not, plugin your new access data. Once you have changed the access date, hit update virus database to ensure that the credentials work and the updates are download