Windows Server 2016-2012 - No Remote Desktop License Servers Available?

The remote session was disconnected because there are no remote desktop licence servers available to provide a licence. Please contact the server administrator?

Windows RDP “No Remote Desktop License Servers available” Error message fix?

Sometimes on Windows Server 2016/2012 (R2) Remote Desktop farm you start receiving error, "The remote session was disconnected because there are no Remote Desktop License Servers available to provide a license. Please contact the server administrator.", while trying to connect using Remote Desktop or Remote App .

Remote Desktop Error Picture:-

 



If you think you have all necessary RDS configurations, licenses (CALs) etc in place, the possibility is, the issue might be related to a bug on Remote Desktop Session Host (RDSH) where it will not look to the Remote Desktop Services Licensing Server for CALs when the grace period ends.

For the fact, you can still connect to the computer reporting error through admin session, mstsc /admin

Picture of RDP:- 


The solution to fix this error is to delete a registry key related to Grace Period.

Open registry editor (regedit) and go to.... Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod

Delete GracePeriod key (folder).

If you are not able to delete this folder then you will have to take ownership Grace Period Key folder. Then you can delete it.

Open Registry Picture:-


You must take ownership and give admin users full control to be able to delete GradePeriod key.

-  Right Click on GradePeriod Key to take ownership of.
-  On the Edit menu, click Permissions.
-  Click Advanced, and then click the Owner tab.
-  Under Change owner to, click the new owner, and then click OK.

Take Ownership Picture:- 


Now, right click and delete the GracePeriod key( ‘REG_BINARY’ ). Once deleted, exit the registry and reboot the server.


Restart the server.

 Note: remember you might have to repeat this every 120 days. Also Microsoft has released below hotfix for the same issue, shout out in comments if this works for you.

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Comments

  1. aliDecember 22, 2020 at 9:28 PM

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    ReplyDelete
  2. TECH SOLUTIONJanuary 3, 2021 at 7:42 AM

    Thanks

    ReplyDelete
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