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FIX: The local security authority cannot be contacted

3 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Windows 10’sRemote Desktopenables users to connect with a remote PC. However, a local security authority error can arise for some users when they try to set up, or log in to, aremote desktopconnection.

The fullerror messagestates:

An authentication error has occurred. The local security authority cannot be contacted.

As a consequence, a remote connection can’t be established.

How can I fix Local security authority cannot be contacted?

How can I fix Local security authority cannot be contacted?

1. Check that Remote Desktop is enabled

2. Unblock remote access

Users have confirmed they’ve fixed the local security authority error by deselecting theAllow connections only from computers runningRemote Desktopwith Network Level Authenticationsetting.

3. Switch to Google DNS

Some users might need to switch to Google DNS to resolve the local security authority error, so be sure to try that.

4. Check Group Policy’s Remote Desktop Services settings

Some users might need to enable Remote Desktop Services with the Group Policy Editor on client PCs.

5. Flush DNS Cache

If the error keeps occurring, we recommend switching to alternative software.Here’s a list of some of the best remote management software.

Those are some of the resolutions users have fixed the local security authority error with. So, there’s a good chance that they’ll fix the same issue for you.

Let us know which of the solutions solved this issue for you by leaving us a message in the comments section below.

More about the topics:Remote Desktop Connection,windows fix

Matthew Adams

Windows Hardware Expert

Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it.

He is passionate about the tech world, always staying up-to-date with the latest and greatest. With an analytical view, he likes problem-solving, focusing on errors and their causes.

In his free time, he likes to read and write about history and tries to always develop new skills.

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Matthew Adams

Windows Hardware Expert

He is passionate about everything surrounding Microsoft’s OS, focusing on troubleshooting guides & tips for everyday problems.