Remote Desktop is one of the advantageous features of Windows 11 that allow users to establish a secure connection between two computers and access remotely.
With the Windows Remote Desktop feature, users get a secure, reliable, and smooth remote connection. Windows uses the CredSSP protocol to establish a remote linkage for authenticating clients on the RDP servers.
However, the problem is whenever users are trying to settle a remote connection; the system throws an error message: An authentication error has occurred. The function requested is not supported, preventing users from setting up the connection.
If you are one of them looking forward to the solutions, I’m here to resolve your error issue. This guide will show several compelling and functional workarounds to fix the Remote Desktop connection error case.
Let’s get started without further ado.
Related guide: Remote Desktop Not Working on Windows 11
Why Does the Remote Desktop Authentication Error Occur?
The Remote Desktop authentication error has occurred on your Windows 11 PC due to the incorrect Remote Desktop username or password or misconfigured Remote Desktop settings. Also, updating the latest version of the Windows 11 is another significant reason for the RDP authentication error.
After clarifying the primary reasons for the Remote Desktop authentication, I will describe these reasons for better understanding. Okay, let’s see.
Here are the reasons for occurring the error of Remote Desktop authentication:
Incorrect Username or Password
When you enter the wrong Remote Desktop username or password to establish a connection remotely between two computers, the system throws the error message on your Windows 11.
Misconfigured Remote Desktop Settings
Misconfigured Remote Desktop settings are one of the leading causes of the error of Remote Desktop authentication. While the Remote Desktop settings are incorrect, the RDP program is not working correctly.
Recent Windows Version Update Issue
If you recently updated your Windows 11 to the most recent version, you may encounter the error message due to the Remote Desktop program bug issue.
Check out our separate post: Enable Remote Desktop RDP in Windows 10 Home Edition
How to Fix Remote Desktop Authentication Error on Windows 11
Resolving the RDP authentication error is a straightforward process. On Windows 11, there are some tested and efficient solutions to fix the RDP connection authentication error issue.
This section will describe some efficacious solutions to resolve the error without facing difficulties. With that said, let’s dive in to wipe out the error.
Here are the steps to fix the Remote Desktop Authentication error on Windows 11:
1. Disable Network Level Authentication
If you encounter the authentication error message on your Remote Desktop, try to disable the Network Level Authentication (NLA) from the Remote Desktop connection. This solution helps you to fix the error.
Here are the steps to disable the Network Level Authentication (NLA):
- Open the Windows Run program by pressing the Windows+R on your keyboard.
- Type sysdm.cpl and click on OK to open the System Properties window.
- Navigate to the Remote tab.
- Select the Allow remote connections to this computer option and uncheck the Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended) option under the Remote Desktop section.
- Click Apply and OK to save the changes.
- Reboot your system and retry to establish the Remote Desktop connection.
You may also like to read: Enter Network Credentials Error on Windows 11/10 Fixed
2. Enable Encryption Oracle Remediation
Encryption Oracle Remediation is a group policy on the Windows system that you need to enable to resolve the error.
Here are the steps to enable the Encryption Oracle Remediation policy using the Local Group Policy Editor:
- Open the Windows Run program by pressing the Windows+R on your keyboard.
- Type gpedit.msc and click on OK to open the Local Group Policy Editor window.
- Navigate to the following path:
- Computer Configuration > Administrative Templates > System > Credentials Delegation.
- Double click on the Encryption Oracle Remediation policy to open the policy window.
- Select Enabled and choose the Vulnerable option next to the Protection Level drop-down menu.
- Click Apply and OK to save the changes.
- Restart your computer and try to reconnect to the Remote Desktop.
Also read, Fix Reset this PC Stuck in Windows 11/10
3. Check Remote Desktop Account Credentials
When you encounter the Remote Desktop authentication error message, it indicates your Remote Desktop account password is expired. On the other hand, you are entering an incorrect remote desktop account username or password.
The Remote Desktop cannot set up the connection if you try to establish a remote connection using the expired password.
So, first, you need to generate a new and fresh password. After that, try to use the new password to establish a secure and reliable remote connection.
However, if your password has not expired and you still encounter the same error message, ensure your Remote Desktop account credentials are correct that you use to set up a remote connection.
After verifying your account credentials, you may try to enter the username and password again to establish the remote connection.
Read more on Why Does Windows 11 Crash So Much?
4. Uninstall the Latest Windows Updates
Some users reported receiving the RDP authentication error after updating the latest Windows 11 version.
So, if the error occurs after your PC’s newest feature update, try to uninstall the recent update to resolve the error issue.
Here are the steps to uninstall the recent Windows updates on Windows 11:
- Open the Windows Search panel by pressing the Windows+S keys, type control panel, and click on the search result to open the System Control Panel window.
- Click on the Uninstall a program under the Programs section.
- Click on the View installed updates.
- Find the most recent Feature update from the lists of installed updates
- Select and right-click on the update, then choose Uninstall to remove the update.
- Reboot your system after completing the uninstallation process.
- Check to see whether your error is solved.
Related content you should read: Fix cFosSpeed Driver Preventing Windows 11 Installation
5. Disable Your Firewall
You can also try to disable your firewall to resolve the RDP authentication error on your Windows 11 computer.
In the Windows system, the firewall sometimes prevents Remote Desktop connection. So, disable your firewall and set up the remote connection again.
Here are the steps to disable the Windows Firewall on Windows 11:
- Open the Windows Search panel by pressing the Windows+S keys, type control panel, and click on the search result to open the System Control Panel window.
- Click on the System and Security options.
- Click on the Windows Defender Firewall options.
- Select the Turn Windows Defender Firewall on or off option on the left side of the window.
- Choose the Turn off Windows Defender Firewall option under the Private network settings.
- Choose the Turn off Windows Defender Firewall option under the Public network settings.
- Click on OK to apply the changes.
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6. Check Remote Desktop is Enabled
If you encounter the Remote Desktop error on your Windows 11, ensure the Remote Desktop feature is enabled on your system. You cannot establish a remote connection without enabling the Remote Desktop feature from the Windows Settings.
Here are the steps to check the Remote Desktop is enabled:
- Open the Windows Settings app by pressing the Windows+I or clicking on the Settings app under the Pinned app section from the Start Menu.
- Select the System tab on the left-side menu panel.
- Click on the Remote Desktop option on the right-side window.
- Toggle on the button next to the Remote Desktop option to enable the feature.
Follow our guide on how to Access iMessage on Windows 11/10
Frequently Asked Questions (FAQs)
How do I fix the authentication error in Remote Desktop?
To fix the authentication error in Remote Desktop, you may try to disable the Network Level Authentication from the Remote Desktop connection, enable the Encryption Oracle Remediation, or use the correct Remote Desktop account credentials.
Also, uninstalling the latest Windows version or disabling the Windows Firewall on your Windows 11 will help you resolve the error.
Does Remote Desktop work on Windows 11?
Yes, on Windows 11, you can use the Remote Desktop easily and efficiently. Note that the Remote Desktop is only available on Windows 11 Pro and Enterprise edition. The Remote Desktop feature is not available on Windows 11 Home Edition.
How do I authenticate Microsoft Remote Desktop on Windows 11?
To authenticate Microsoft Remote Desktop on Windows 11, open the Windows Settings app and navigate to the System > Remote Desktop. After that, turn on the Remote Desktop feature and try to establish the remote connection.
How do you fix an authentication error when the function requested is not supported?
To fix the authentication error in Remote Desktop, you may try to use the correct Remote Desktop account credentials, disable the Network Level Authentication from the Remote Desktop connection, or enable the Encryption Oracle Remediation.
Final Thoughts
In Windows 11, the Remote Desktop authentication error is a familiar issue for users. Due to misconfiguration of Remote Desktop settings, the latest Windows version bug issue, or incorrect Remote Desktop credentials is the main culprit.
Applying the six proven and tested solutions described in this post, you can effortlessly fix your error issue within a few minutes. Sounds cool, right?
So, try all the methods one by one until you get the right one to help you resolve your issue. After fixing the error, let me know which approach worked for you.
That’s all for now. See you in the next one.
