FIX: Err_cert_authority_invalid error in Google Chrome

Andrew Wafer
by Andrew Wafer
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  • The net::Err_cert_authority_invalid Windows 10 error message occurs due to connections that are not secure.
  • Switching to another more secure browser is the easiest way to fix the connection not private error message.
  • Follow our method to disable certain extensions that might cause the net::Err_cert_authority_invalid issue.
  • One other thing you can do to get quickly fix it is adjusting your antivirus settings as shown in the solution below.
Fix Err_cert_authority_invalid error in Google Chrome
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Keeping your Windows 10 security features updated all the time is recommended if you want to safely complete all your daily tasks.

That’s why you should always use an antivirus program, the firewall protection should be enabled and your web browsers should be running on the latest available build.

The most common warning related to network connections that aren’t properly secured is the err_cert_authority_invalid error, a message that comes along with the Your connection is not private error.

However, that doesn’t necessarily mean you are about to navigate towards a risky website as that might be a general error issued by your web browser or by the Windows 10 system.

These websites might not have an SSL certificate, the certificate might not be updated or the server created credentials or certificates which your web browser cannot rely on.

However, sometimes the err_cert_authority_invalid error is nothing but a malfunction – you can receive it on all websites or on pages that you know for sure that are secured.

Since in most cases this error message is prompted when using Google Chrome, we will focus on listing the troubleshooting steps for this particular web browser.

The solutions below also solve the following issues:

  • err_cert_authority_invalid
  • err_cert_authority_invalid chrome windows
  • err_cert_authority_invalid chrome
  • net::err_cert_authority_invalid
  • net::err_cert_authority_invalid windows 10

Quick tip:

Instead of bothering with complicated fixes, you should rather switch to a safer browser like Opera. It is fast, optimized, has a built-in VPN and Adblock, feature-rich, and highly customizable.

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This browser comes with a built-in tracker blocker that stops online trackers such as analytic scripts or tracking pixels that collect data from you. 

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How do I fix Err_cert_authority_invalid error in Chrome?

  1. Check the Date and Time settings
  2. Adjust antivirus settings
  3. Disable extensions on Chrome and reset settings
  4. Clear history on Chrome
  5. Assign DNS Settings

1. Check the Date and Time settings

As a security measure, Chrome and all the other web browser clients will let you access webpages only if the Date and Time is set properly. Your need to check if your date and time settings are correct.

If, for some reason you rolled back the time or the date on your Windows 10 computer you will receive the err_cert_authority_invalid error each time you will try to access a page through the Internet.

This means that your browser’s date and time settings are directly synced with your PC, and need to match eachother (the different time zones do not affect this).

Therefore, you should start the troubleshoot initiative by setting up the date and the time correctly on your device. This is done easily if you follow the article.


2. Adjust antivirus settings

For BitDefender:

  1. Click on Settings and go to Privacy Control.
  2. Switch to Antiphishing tab.
  3. From there set Scan SLL to Off.
  4. Depending on the BitDefender version you might have to follow this instead: go to Protection, choose Web Protection and turn off Scan SSL.

For AVAST:

  1. Launch Settings and choose Active Protection.
  2. Then, pick Web Shield and choose Customize.
  3. The Unable HTTPS Scanning option must be unchecked.

For Kaspersky:

  1. Navigate to Settings.
  2. Click on Extend and select Network Settings.
  3. From there you should have several options related with the SSL scan.
  4. Choose the one that lets you navigate on all browsers.

3. Disable extensions on Chrome and reset settings

  1. Open Chrome and click on the Menu icon.
  2. Click on More tools and choose Extensions.
  3. Turn off all installed Extensions and then reboot Chrome.
  4. Go to Settings again, scroll down, and pick Show Advanced Settings.
  5. Under Privacy and security, you need to click on the Cookies and other site data from the right pane.
  6. Next, uncheck the Send a Do Not Track request with your browsing traffic option.
  7. Restart Google Chrome after applying all the tweaks from above.
  8. If Chrome gets stuck, you can use this guide for fixing it.

4. Clear history on Chrome

  1. Access the Chrome’s Settings.
  2. Scroll down and pick Advanced Settings.
  3. Select Clear Browsing Data.clear browsing data
  4. From the pop-up that will be displayed select the fields from the list and when done select Clear browsing data.

5. Assign DNS Settings

  1. Click on the Cortana icon and use the Search box for entering Network and Sharing Center.
  2. From the left sidebar then choose Change Adapter Settings.
  3. Right-click on the Adapter that’s currently active and select Properties.
  4. Pick Internet Protocol Version 4 and then select Properties.
  5. Click on Use the following DNS server address and type Google’s Public DNS servers: 8.8.8.8, respectively 8.8.4.4.
  6. Apply settings and restart your Windows 10 machine.

These methods are all valid solutions that can fix the err_cert_authority_invalid warning error displayed by your web browser client.

If the problem persists, we will try to find more solutions to your problem. To that matter, don’t hesitate and get in touch with us by writing your observations in the comments field below.

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