Remote Desktop Connection: An authentication error has occurred. The function requested is not supported
Microsoft Security patch (CredSSP updates for CVE-2018-0886) issued on Tuesday, May 8th 2018 triggered the following RDP problem. “An authentication error has occurred. The function requested is not supported Remote computer: <computer name> This could be due to CredSSP encryption oracle remediation. For more information, see https:/go.microsoft.com/fwlink/?linkid=866660” It changed the default setting from Vulnerable to Mitigated….