How to resolve Windows Server 2012 R2 RDP error: an authentication error has occured, the function requested is not supported

Got this error while trying to do an RDP into a Windows Server 2012, R2.

red-error1

A google search and information found led me to install a below Microsoft Update on my server.

URL: 2018-05 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB4103725)

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