To log on to this remote computer, you must be granted the Allow log on through Terminal Services Right.

To log on to this remote computer, you must be granted the Allow log on through Terminal Services right. By default, members of the Remote Desktop Users group have this right. If you are not a member of the Remote Desktop Users group or another group that has this right, or if the Remote Desktop User group does not have this right, you must be granted this right manually.

Control Panel -> Administrative Tools -> Local Security Settings

Under Local Policies -> User Rights Assignment

Open "Log On Locally" and add users you want to allow login to this.