Remote Desktop: An authentication error has occurred. The function requested is not supported.

Issue: When trying to establish Remote Desktop(RDP) connection to a server or computer, you get error “An authentication error has occurred. The function requested is not supported.”   Cause 1: Microsoft has released an update on March 2018 to fix an issue with CredSSP, “Remote Code Execution” vulnerability (CVE-2018-0886) which affect RDP connections. If one…

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