Unable to RDP to Server Due to Modified RD CAL

This morning when I tried to RDP to a server running terminal services, I received this message:

“Remote desktop connection session was disconnected because the Remote Desktop client access license stored on this computer has been modified.”

Delete the following two registry keys on the client computer:

  • HKLM\SOFTWARE\Microsoft\MSLicensing
  • HKLM\SOFTWARE\Wow6432Node\Microsoft\MSLicensing

Then run the RDP Client as an Administrator


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