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

  An authentication error has occurred. The function requested is not supported. Remote computer This could be due to CredSSP encryption oracle remediation In Windows 8 .1 machine while connecting...

 

An authentication error has occurred. The function requested is not supported. Remote computer This could be due to CredSSP encryption oracle remediation

In Windows 8 .1 machine while connecting a remote server through remote desktop faced this error as shown in image – 1

iThemes Security noticed file changes in your WordPress site. Please review the logs to make sure your system has not been compromised.

Image – 1

I just tried from a Windows 7 machine also I could not able to connect but with same error as shown in Image – 2

iThemes Security noticed file changes in your WordPress site. Please review the logs to make sure your system has not been compromised.

Image – 2

Solution both for Windows 7 and Windows 8.1

Workaround to enable remote desktop connection to remote server is to edit in Group Policy

Go to run type – gpedit.msc to open Local Group Policy Editor as shown in Image – 3

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

Image – 3

Expand Computer ConfigurationAdministrative TemplatesSystem – select Credentials Delegation, click on right panel  “Encryption Oracle Remediation”. Its default value is “Not configured”. we just change it to “Enabled”, and set “Protection Level” as “Vulnerable”. as shown in Image – 4

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

Image – 4

Now if you try to connect to your remote server . It will connect without any error from both Windows 7 and Windows 8.1 machine.

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Windows

I am a proud Indian, proud father, a blogger, Being in a profession as System administrator, my passion is troubleshooting computer issues, I do like sharing solutions through blogging making videos of solving issues.
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