Q. When trying to connect to an RDS (Terminal Server), the following error occurs: Because of a security error, the client could not connect to the Terminal server. Note: this often happens when using a Motorola Symbol RDS handheld scanner.
A. The following scenarios can cause this error to occur:
1. You are connecting using an older version of RDP
2. The Terminal server does not belong to a domain.
3. The Terminal server is licensed. Note: If the Terminal server is in evaluation mode before the licenses are applied, the older versions of RDP can connect.
Solution:
Solution
- Go to RD Licensing Manager
- Right click on your Licensing Server name and select properties.
- Change Connection Method to 'Web Browser'
- Go back to the Licensing Server and right click on your server. Select Advanced -> 'Reactivate Server'
- Reactive server via the given Wizard + web browser
- Delete the following registry keys (they will be reset when you reboot)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM
- Certificate
- X509 Certificate
- X509 Certificate ID
- X509 Certificate2
This solution was found in this forum thread: http://social.technet.microsoft.com/Forums/en-US/winserverTS/thread/e172f4c6-dbd1-4aa1-b6d7-ffff06b40a17/.
If you search for EricWy you will find the solution about two-thirds of the way down this forum thead.
