Go to the command prompt and run the following command: gpupdate /force.
Select Enabled and set the protection level to Vulnerable.
From the right-hand pane, open Encryption Oracle Remediation.
Go to the following policy path: Computer Configuration -> Administrative Templates -> System -> Credentials Delegation.
Go to Run –> gpedit.msc to open Group Policy Editor.
If you do not want to update your computer or if it’s not in your access, then you can try the other solutions listed below. Specifically, if the target computer is running Windows Server 2016, you should install KB4103723 and if you are using Windows Server 2012 R2, then you should install KB4103725.Ī server reboot will be required after installing these updates. Install all the updates specifically related to CVE-2018-0886. Go to Windows Update and check for updates. The first and most recommended solution to this issue is to update the target computer on which you are trying to connect remotely. Solution 1: Install updates on the target computer Let’s go through some resolutions to this problem. 4 solutions to RDP Authentication Error Function Requested Is Not Supported In a situation where the server does not have the required Windows update patch, an updated client computer will refuse to connect to the non-secure server because Microsoft makes it mandatory to enable NLA for secure remote desktop connection. To fix this issue, Microsoft introduced the Network Level Authentication (NLA) protocol which works along with CredSSP and pre-authenticates RDP client users over TLS/SSL or Kerberos. Windows uses CredSSP protocol (Credential Security Support Provider) for authenticating clients on the RDP servers.Ī serious vulnerability was found in CredSSP protocol which could impact the security of both the server and the client.
Solution 4: Uninstall updates from your computer.
Solution 1: Install updates on the target computer.
4 solutions to RDP Authentication Error Function Requested Is Not Supported.
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