I have installed Remote Desktop Services host settings on my Amazon EC2 Windows instance to allow more than 2 concurrent RDP client sessions. However, I now receive the error message "The remote session was disconnected because there are no Remote Desktop License Servers available to provide a license. Please contact the server administrator". How can I resolve this?

Remote Desktop Services provides a licensing grace period of 120 days. After the grace period has expired, you must purchase Client Access Licenses (CALs) to allow more than 2 concurrent RDP user sessions.

For assistance with purchasing and installing CALs, contact your VAR or Microsoft Partner.

Note: If you are still unable to connect to a Windows instance using RDP, you might have to do some additional troubleshooting. For more information, see RDP displays a black screen instead of the desktop.

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Published: 2017-05-02

Updated: 2017-06-09