RDP stops working – grace period issues

RDP basically has three modes:

  1. Per user
  2. Per device
  3. Administrative power user

#1s and #2s cost $ where as #3 cost $0.

So power users use option #3. Option #3 is normally restricted to ONE USER ONLY, but with some registry hacking, you can have TWO USERS.

Alas! Our client contacts us. We are not using #1, nor #2, and we get this gem:

The Remote Desktop Session Host server does not have a Remote Desktop license server specified. To specify a license server for the Remote Desktop Session Host server, use the Remote Desktop Session Host Configuration tool.

This is confusing? We’re not using #1, nor are we using #2, so what gives? We start researching. We found this, it looks promising:


We read it through, a few times. It only mentions #1 and #2, and not #3. What now? More Google? More AI? More Bing??

Here is the fix:

  1. Log onto the server
  2. Open the Command Prompt as an Administrator
  3. Type regedit and press enter.
  4. Navigate to the following key: HKLM/CCS/Control/TerminalServer/RCM/GracePeriod
  5. Right click the GracePeriod key as you’ll be re-assiging the owner
  6. Click Permissions
  7. Click Advanced
  8. Fiddle, and make the new owner something like Administrator. If there are groups involved, make them Administrators.
  9. Delete the L$RTMTIMEBOMB

Have a nice day.

Before screenshot:



Share this article

Leave a Reply

Your email address will not be published. Required fields are marked *

Scroll to Top