Create a new saved Remote Desktop File. . You can find several efficient methods to fix the error. The Function Requested is not Supported.". If you want to stay constantly protected from malware threats, existing and future ones, we recommend that you install Malwarebytes Anti-Malware PRO by clicking below (we do earn a commision from sales generated from this link, but at no additional cost to you. Remote computer can be either Win10 enterprise or Win2016 server. Here are the steps: Right-click Windows 10 start. Contact Us. When you are attempting to remotely connect, it is necessary that both the computers have the same security patches installed to avoid security vulnerabilities. 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. I have run into this error a few times in the past. Simply adjust the Remote Desktop settings on the host machine to a lower security level. It seems that the remote connection wanted … Then from Active Directory, you can select the user and open its properties. Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here). To sort out your concern, we suggest that you check the Remote Desktop settings from System Properties to determine if the issue is not related to it. When you try to establish a connection with another remote computer using Remote Desktop Connection, you may get an error message saying that “An authentication error has occurred the function requested is not supported”. There are three useful methods to fix the “An authentication error has occurred” error in this post: change the remote desktop settings, change the Group Policy settings and edit the Registry. Step 2: Click Computer Configuration and then select Administrative Templates > System > Credentials Delegation on the left of the window. Microsoft has officially acknowledged the error message and even released a document stating the root and causes of the error. If this doesn’t work, restart your computer and try again. 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. 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. Enable Remote Connections in Group Policy Editor These security patches are installing through Windows Updates. If you are an administrator on the remote computer, you can disable NLA by using the options on the Remote tab of the System Properties dialog box." Batch convert video/audio files between 1000+ formats at lightning speed. Step 4: Restart your computer and then check if the “An authentication error has occurred” error is gone. There is another method you can try to fix the “An authentication error has occurred” error – edit the Registry. When you try to establish a connection with another remote computer using Remote Desktop Connection, you may get an error message saying that “An authentication error has occurred the function requested is not supported”. Remote Desktop RDP "The remote computer that you are trying to connect to requires Network Level Authentication (NLA), but your Windows domain controller cannot be contacted to perform NLA. There are some keys which we must change so a connection to the other computer is established without any issues. In addition to the above solutions, you can also try: Fix: An Authentication Error has occurred (Remote Desktop). Award winning disk management utility tool for everyone, Complete data recovery solution with no compromise, Quick, easy solution for media file disaster recovery, Android, iOS data recovery for mobile device. The methods are shown below. MiniTool ShadowMaker helps to back up system and files before the disaster occurs. The causes are but not limited to: Before you move on to the solutions, make sure that you have an active internet connection and are logged in as an administrator. Each time I do, I solve it and forget about it, so that it stymies me for a few minutes the next time I run into it. 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. MiniTool Partition Wizard optimizes hard disks and SSDs with a comprehensive set of operations. It will introduce you 5 methods to repair this problem. Step 3: Double-click the Encryption Oracle Remediation on the right of the window. This security update addresses the vulnerability by correcting how CredSSP validates requests during the authentication process. This works in most cases, where the issue is originated due to a system corruption. So, could you confirm if you use Remote Desktop Connection 6.0 client to connect Vista? Step 2: Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters. Here is a quick guide: Step 1: Type regedit in the Run box and then click OK to open the Registry Editor window. Like mentioned before, the causes for this error can be traced to a number of different modules. 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. Uncheck Allow connections only from computers running Remote Desktop with Network Level Authentication option. 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. Step 4: Change the Value data to 2 and then click OK. If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. The remote desktop error ‘ An internal error has occurred ’ is often caused by RDP settings or its local group policy security. The remote computer that you are trying to connect to requires Network Level Authentication (NLA), but your Windows domain controller cannot be contacted to perform NLA. So how to fix the “Remote Desktop An authentication error has occurred” error? The Remote Desktop Mobile application does NOT have Network Level Authentication. แก้ไข Remote Desktop connection แสดง CredSSP linkid=866660 Windows 10 วิธีตั้งค่า Microsoft Edge ให้เปิดเว็บ Google เป็นหน้าแรก When attempting to Remote Desktop (RDP) to a Windows machine, you may receive an error. You can download Restoro by clicking the Download button below. Connect with us for giveaways, exclusive promotions and latest news! Author Sonya has been engaged in editing for a long time and likes to share useful methods to get rid of the common problems of Windows computers, such as Windows Update error. You can disable Network Level Authentication in the System Properties on the Remote tab by unchecking the options “ Allow connection only from computers running Remote Desktop with Network Level Authentication (recommended) ” (Windows 10 /8.1 or Windows Server 2012R2/2016). Both fail. Fixed: Remote Desktop An Authentication Error Has Occurred, 6 Methods to Fix the Windows 10 Remote Desktop Not Working Error, Windows Defender Blocked by Group Policy? Step 5: Close all the windows. By Sonya | Follow | Last Updated November 26, 2020. To learn more about the vulnerability, see CVE-2018-0886. Now I've set it to allow any connection (less secure, mind), and the RDP Mobile works! The initial March 13, 2018, release updates the CredSSP authentication protocol and the Remote Desktop clients for all affected platforms. Make sure that both computers are updated. In Remote Desktop Connection 6.0, server authentication verifies that you are connecting to the correct remote computer or server, which may lead to some incompatibility issue. You can reset the password from the domain controller (for enterprises). To restore remote desktop connection, you can uninstall the specified security update on the remote computer (but it is not recommended and you should not do this, there is a more secure and correct solution).. To fix the connection problem, you need to temporarily disable the CredSSP version check on the computer from which you are connecting via RDP. From Windows 10, uncheck the option to “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)”: From Windows 7, it’s setting the o… 1 – Simply adjust the Remote Desktop settings on the host machine to a lower security level. ; Click Start Scan to find Windows issues that could be causing PC problems. Perhaps some other magic occurred when installing updates in the server but the authentication issue using remote desktop has gone (at least from the one client computer I tried). Step 7: Reboot your computer and then check if the error is fixed. He has written several tech articles for popular newspapers and magazines and has also appeared in tech shows on … One could rollback the security update, but rather than risking other security problems, there’s a quick fix. From File Explorer, choose Computer, right-click and select Properties, then click Change Settings, and go to the Remote tab. I have the same problem with Remote Desktop Manager version : 11.1.11.0 windows build 14316 swithcing off NLM does allow me to login. The methods are shown below. 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. MiniTool Power Data Recovery helps to recover files from PC, HDD, USB and SD card quickly. The next step to to try to fix “remote desktop can’t connect to the remote computer” is to check whether Remote Desktop is enabled. From File Explorer, choose Computer, right-click and select Properties, then click Change Settings, and go to the Remote tab. If you do not have Group Policy Editor on your computer, we can use the registry editor to add the key. If you don’t know, then this post written by MiniTool is what you need. The Local Security Authority cannot be contacted. Step 3: Switch to Remote tab, check Allow remote connections to this computer under Remote Desktop section. Before we move on to other extensive solutions, it is probably wise to install the latest Windows updates on both computers. To check the current port on which the Remote Desktop service is listening on the computer, open the registry editor (regedit.exe), and go to the registry key: Step 3: Double-click the AllowEncryptionOracle DWORD to open its Edit DWORD window. The Local Security Authority cannot be contacted. This can be done using the local … Step 6: Type gpupdate /force in the window and then press Enter. For example, some users have seen an error like this when trying to login “ Remote Desktop Connection: An authentication error has occurred. Step 4: Choose Enabled and then select the Vulnerable option under the Protection Level drop-down menu. Step 3: Go to the Remote tab and then uncheck the Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended) option. The … As a workaround, disable authentication using a new RDP file. Updates March 13, 2018. Step 1: Press the Win key + R key at the same time to open the Run box. The function is not supported. Unfortunately this has caused for a large number of users the appearance of the following error when making a remote connection via RDP: If you are looking for a method to fix broken registry items, this post is what you want. To resolve the issue, change the remote desktop security on the RD server to RDP Security Layer to allow a secure connection using Remote Desktop Protocol encryption. Microsoft has officially acknowledged the error message and even released a document stating the root and causes of the error. Now Windows will connect to its server and after downloading the required files, will install the updates. An authentication error has occurred. Click Apply and OK to save changes. He holds Masters degree in Computer Applications (MCA). It is kind of guideline and it may vary computer to computer depending on preferences. If you have having issues logging into a Windows Server with Remote Desktop Services, below are some things to try. Follow the detailed instructions below: Step 1: Open the Run box and then type gpedit.msc in the box. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget. 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