While Login to Remote Desktop Connection are you receiving the error, an authentication error has occurred. Then you have to update the Operating system. If you cannot update the operating system then follow the step.
The Steps are.
- On Window Icon, type gpedit
2. Go to Local Computer Policy > Computer Configuration > Administrative Templates > System> Credentials Delegation > Encryption Oracle Remediation. Click on Edit Policy setting
In Option section, Protection Level select Vulnerable and click Ok button.
Restart the Computer, Remote Desktop will works.