Connection of Robot with Orchestrator Failed with Error "An error has occurred"

How to resolve when the connection of Robot with Orchestrator Failed with Error "An error has occurred"?

Issue Description: Robot connection failed with Error : “An Error has occured”. in version 20.4 Studio/Robot or higher. Error : System.InvalidOperationException: No authentication handler is registered for the scheme ‘Windows’.

Resolution: Capture the Event Viewer logs in the Orchestrator machine to understand the exception when the API call is made to the server for the connection              

The registered schemes are: UiRobot, BasicAccessToken, UiRobotAccessToken, IdentityUserAccessToken, LicenseKey, Identity.Application, Identity.External, Identity.TwoFactorRememberMe, Identity.TwoFactorUserId, UiPath.Windows, SystemOpenIdConnect.

Kindly invoke AddAuthentication().AddSomeAuthHandler