I am unable to connect to an EC2 Windows instance using RDP and receive an error, "The remote session was disconnected because there are no Remote Desktop License Servers available." How can I resolve this?
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When connecting to an Amazon Elastic Compute Cloud (Amazon EC2) Windows instance using Remote Desktop Protocol (RDP), I receive this 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?
The error indicates there is an issue with the Remote Desktop Services host settings on your Amazon EC2 Windows instance.
If you don't need to run more than two concurrent RDP sessions, uninstall the Remote Desktop Service.
If you installed the Remote Desktop services host settings on your Amazon EC2 Windows instance to allow more than 2 concurrent RDP client sessions, then you must purchase Client Access Licenses (CALs). RDS provides a licensing grace period of 120 days. After the grace period expires, you must purchase CALs to allow more than two concurrent RDP user sessions.
For assistance with purchasing and installing CALs, contact your VAR or Microsoft Partner.