When you try to connect to a remote computer with a vulnerable CredSSP from Windows 10/Windows Server 2016, you receive the Remote Desktop Connection error: An authentication error has occurred. People using Remote Desktop Connection might face a situation where they experience the error “ An Authentication Error has occurred ” when trying to establish a connection with another remote PC. Simply adjust the Remote Desktop settings on the host machine to a lower security level. Both fail. Follow the detailed instructions below: Step 1: Open the Run box and then type gpedit.msc in the box. Now Windows will connect to its server and after downloading the required files, will install the updates. For example, some users have seen an error like this when trying to login “ Remote Desktop Connection: An authentication error has occurred. In addition to the above solutions, you can also try: Fix: An Authentication Error has occurred (Remote Desktop). An authentication error has occurred. Copyright © 2020 MiniTool® Software Limited, All Rights Reserved. You can download Restoro by clicking the Download button below. There are some keys which we must change so a connection to the other computer is established without any issues. Create a new saved Remote Desktop File. Step 4: Click Apply and OK to save the changes. Once in the Group Policy Editor, navigate to the following key: Press Windows + S, type “command prompt” in the dialogue box, right-click on the application and select. If this doesn’t work, restart your computer and try again. I have run into this error a few times in the past. There is another method you can try to fix the “An authentication error has occurred” error – edit the Registry. We have experience with this software and we recommend it because it is helpful and useful): I went and edited remote desktop connection, in the advanced tab, server Authentication, connect and don’t warn me. When attempting to Remote Desktop (RDP) to a Windows machine, you may receive an error. Then in the tab, If you do not have access to the remote computer, you can. Step 2: Click Computer Configuration and then select Administrative Templates > System > Credentials Delegation on the left of the window. Click Apply and OK to save changes. The initial March 13, 2018, release updates the CredSSP authentication protocol and the Remote Desktop clients for all affected platforms. Before we move on to other extensive solutions, it is probably wise to install the latest Windows updates on both computers. As a workaround, disable authentication using a new RDP file. Type cmd in the Run box and then click OK to open the Command Prompt window. The Function Requested is not Supported.". Uncheck Allow connections only from computers running Remote Desktop with Network Level Authentication option. . Click Apply and OK to save changes. People using Remote Desktop Connection might face a situation where they experience the error “An Authentication Error has occurred” when trying to establish a connection with another remote PC. The function requested is not supported. When you try to connect a remote computer, but the Windows 10 Remote Desktop not working error appears, then you can find methods to fix the error in this post. Step 3: Switch to Remote tab, check Allow remote connections to this computer under Remote Desktop section. Published in: Troubleshooting, Windows 10, Windows 7, Windows 8 / 8.1, Windows Vista About the author: Vishal Gupta (also known as VG) has been awarded with Microsoft MVP (Most Valuable Professional) award. Microsoft has officially acknowledged the error message and even released a document stating the root and causes of the error. Free, intuitive video editing software for beginners to create marvelous stories easily. There have been quite a few reports which state that users are not able to use the Remote Desktop Connection client to connect to another system. You can find several efficient methods to fix the error. It will introduce you 5 methods to repair this problem. The methods are shown below. You can reset the password from the domain controller (for enterprises). Batch convert video/audio files between 1000+ formats at lightning speed. Check RDP Port and Windows Firewall Settings. This works in most cases, where the issue is originated due to a system corruption. In the Remote Settings on my laptop (the computer I was connecting to), I had it set to only allow connections with Network Level Authentication. Enable Remote Connections in Group Policy Editor Step 1: Press the Win key + R key at the same time to open the Run box. From File Explorer, choose Computer, right-click and select Properties, then click Change Settings, and go to the Remote tab. 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