Windows 2012 No Remote Desktop License Servers Available

Customer site is running Windows Server 2012 Essentials and a Windows 2012 Terminal Server. User contacts me to report that she was unable to connect into the Terminal Server from Remote Web Access (RWA). I tried, and got the same error message when I tried to access the Terminal Server:

The remote session was disconnected because there are no Remote Desktop License Servers available to provide a license. Please contact the server administrator

I knew it was not an RWA issue because I could RWA into the 2012 Essentials server. A quick search and I found a post that indicates that there is a bug with 2012 RDS session hosts where they will not look to the licensing server for CALs when the grace period ends. Although I would like a permanent fix, the following solution resolved the crisis at hand.

The solution is to delete a specific registry key relating to the grace period, and then reboot the server.

  1. Open up the registry editor on the Terminal Server
  2. Browse down to: HKLM\System\CurrentControlSet\Control\Terminal Server\RCM
  3. Make a backup copy of the GracePeriod registry key
  4. Then you can Delete the GracePeriod registry key
  5. Note: if you are not able to delete the key, you need to give yourself permission:
    Right click on the GracePeriod key and assign ‘full control’ permission to the administrator account.
    You should then be able to delete the key.
  6. Reboot the server and check it out.


  1. Thank you
    It works for me Perfectly at 08/07/2014. Yoy have to restart server after you delte the grace period Key

  2. You can find an original License Key for Windows Server 2012 on, tried and guaranteed.

  3. You can find an original License Key for Windows Server 2012 on licence-activation dot com, tried and guaranteed.

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