Terminal Services Client Error Message: You Do Not Have Access to Logon to This Session

When you try to log on using the Terminal Services client, you may receive the following error message:

Terminal Services has a default connection security setting allows only administrators to log on. If the security attributes on a specified connection have not been set, the connection inherits these default security settings. For additional information, please see the following article in the Microsoft Knowledge Base: If the default connection security settings do not meet your needs, you can set custom security attributes.

To set custom Terminal Services connection permissions:

1. Click Start, point to Programs, point to Administrative Tools, and then click Terminal Services Configuration.
2. Open the Connections folder.
3. Right-click the connection (RDP-TCP), and then click Properties.
4. On the Permissions tab, add the group(s) that needs access to this connection.
5. Click OK.

This behavior is by design.