If your remote desktop connection is failing with credssp (Oracle Remediation) error: the function requested is not supported please follow below guide.
The connection error is usually due to a problem in authentication on either the client or the server.
Steps required to fix on the client side:
- access gpedit.msc on your windows/run
- Go to Computer Configuration -> Administrative Template -> System -> Credentials Delegation -> Encryption Oracle Remediation
Double Click on “Encryption Oracle Remediation”, choose “Enable” and change protection level to “Vulnerable” and click “Apply” or “Ok”
You can also fix the issue with the help of a Windows Registry Editor
1. Open Windows Registry by typing “regedit” in “Run”
2. Navigate to Computer -> HKEY_LOCAL_MACHINE -> SOFTWARE -> Microsoft -> Windows -> CurrentVersion -> Policies -> System -> CredSSP -> Parameters
3. Doubleclick on the Key “Allow Encryption” Change the value to “2”
This method also gives the same output as achieved through the Group Policy Editor. You may use the below table from Microsoft to compare the installed windows update for CredSSP.
For any technical assistance to fix CredSSP Authentication Error in RDP feel free to contact us
