The remote machine must be configured to accept incoming RDP requests, and the standard port (3389) must be open.

Restart the computer. Windows will automatically reinstall the driver upon reboot. 6. Review Group Policy Restrictions

Use the Microsoft Learn Guide to verify that the RDP listener is active on port 3389. 4. Adjust Security Layer and Admin Switches

If you are connecting via a hostname, try using the IP address instead to rule out DNS resolution issues.