An Authentication Error Has Occurred. The Function Requested Is Not Supported [Fixed]

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Published on ● Video Link: https://www.youtube.com/watch?v=-2FNIGjVlWQ


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An Authentication Error Has Occurred. The Function Requested Is Not Supported [Fixed]

Some users are encountering the An Authentication Error Has Occurred the Function Requested is Not Supported error when trying to use the Remote Desktop Connection between two Windows computers. Most affected users report that the issue only started appearing after a Windows update was performed.

The following error appeared on a Windows 7 based computer, when I tried to connect to a Server 2012 via the Remote Desktop Connection app: "An authentication error has occurred. The Function Requested is not Supported.". At the same time, the Remote Desktop connection is successful from Windows 10 based PCs.

Issues addressed in this tutorial:
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This tutorial will apply for computers, laptops, desktops, and tablets running the Windows 7, Windows 8/8.1, Windows 10 and Windows 11 operating systems (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba, Lenovo, Huawei and Samsung.



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Tags:
an authentication error has occurred. reset your password or contact customer support
an authentication error has occurred the function requested is not supported
an authentication error has occurred the local security authority cannot be contacted
an authentication error has occurred the function requested is not supported windows 10
an authentication error has occurred remote desktop windows 11
an authentication error has occurred remote desktop windows 10