How to Fix the NET::ERR_CERT_AUTHORITY_INVALID Error (9 Fixes)

You may encounter the NET::ERR_CERT_AUTHORITY_INVALID issue even if there is an SSL certificate installed on the website. The invalid certificate authority issue, despite its ominous name, isn’t something to be concerned about.

NET:: ERR_CERT_AUTHORITY_INVALID Error is an SSL error that the website owner can fix. Though there are a variety of factors that might cause this error, these three are the most common ones.

  • It’s a self-signed SSL certificate.
  • The SSL certificate has run out of validity.
  • SSL certificates are issued by untrustworthy sources or certificate authorities.

SSL (Secure Socket Layer) certificates encrypt the network traffic between a web browser and a website. Hackers may use compromised certificates to attack trustworthy sites, which can result in similar issues.

As a result, these error warnings should be taken seriously to avoid future harm.

neterr error

Due to local setup settings, you may occasionally receive the


Simply put, your browser does not perceive your certificate as legitimate. It displays this error to keep you safe, so you’re aware that something isn’t quite right. Here are a few solutions that will assist you in resolving the issue.

Fix 1: Checking date and time.

Check to see if the system time and date are correct. If the date and time are incorrect, here are the steps that you must follow to fix it:

Step 1: Click the time in the bottom right-hand corner of your desktop screen.

Step 2: Go to the option of ‘Change date and time settings

Step 3: A new window will open up, click on the ‘Change date and time’ option and fix it.

Fix 2: Updating the browser and operating system.

Because it may not support the new version of the SSL encryption technique, an outdated operating system or non-updated browser may cause the NET::ERR_CERT_AUTHORITY_INVALID issue.

To reduce the odds of a mistake, download the most recent operating system and upgrade your browser. Here are the steps that you must follow to update your browser.

Step 1: Open the browser, and then select the three vertical dots from the top right-hand corner.

Step 2: Select the ‘Settings’ option and then go to the ‘About chrome’ option from the left side menu.

neterr update

Google Chrome will begin automatically searching for and installing any available updates. Click the Google Chrome Update button if it doesn’t. To have the update take effect, restart Chrome.

Fix 3: Clearing the browser cookies and cache.

Errors might be caused by expired cookies or browser cache. Open your website in incognito mode to see if they’re the source of the problem. Here is how to do it:

Step 1: Select the three dots from the browser’s top right corner

Step 2: Click on ‘New incognito window’ from the opened menu.

neterr incognito

Now if the error vanishes, then this shows that the saved cache, cookies, and data of the browser were causing the NET::ERR_CERT_AUTHORITY_INVALID error.

Here is how you can delete all the saved data to resolve the issue:

Step 1: Select the three dots from the browser’s top right corner

Step 2: Click on ‘Settings’ from the opened menu.

Step 3: Go to the ‘Privacy and Security’ option from the left-side and then select the ‘Clear Browsing data’ option.

Step 4: Three checkboxes will appear, tick all of them.

neterr clear data

Step 5: Select time as ‘All time’ and click on the button specifying ‘Clear data.’

Fix 4: Deactivating the chrome extensions.

SSL failures are sometimes caused by browser extensions, and deactivating them is the only way to fix the problem. To deactivate browser extensions, follow these steps:

Step 1: Go to the browser and select the three dots from the browser’s top right corner

Step 2: Click on ‘More tools’ and then select the ‘Extensions’ option.

Step 3: Now deactivate the extensions one by one and see if any of them is the cause of the error.

neterr extensions

Fix 5: Properly installing the SSL certificate.

Improper installation can result in the ERR CERT AUTHORITY INVALID issue in Chrome, which can lead to work disruption.

If you are unable to successfully install the SSL certificate on your website, you can seek professional assistance or outsource the process. Because these professionals are up to date on the current SSL developments, they can advise you on how to properly install SSL, reducing the risk of error.

There are various SSL installation guides available, which may provide useful information.

Fix 6: Checking the expiry date of the SSL certificate.

Due to your hectic schedule, you may overlook the SSL expiration dates, resulting in browser problems. SSL could expire for a variety of reasons.

  • The SSL certificate supplier has not enabled ‘auto-renew enabled’ for the website owner.
  • If ‘auto-renew is turned on,’ yet the site owner fails to pay.
  • The owner of a website ignores an email from the SSL provider informing them that their SSL certificate is about to expire.
  • The website owner has made use of a free SSL certificate that will expire in 90 days.

Here is how you can easily check the SSL certificate’s expiry date:

Step 1: Go to the browser and select the three dots from the browser’s top right corner

Step 2: Select ‘More tools’ and then click on the ‘Developer tools’ option

Step 3: Select the ‘Security’ tab and move to the ‘View certificate’ option

Step 4: Check all the details about the SSL certificate from here, including its types and an issuer name, and validation period.

neterr SSL details

Step 5: If the certificate expired, get it renewed to resolve the error.

Fix 7: Resetting the chrome’s default settings.

Sometimes, a change in the chrome settings might also cause the ERR CERT AUTHORITY INVALID error. Here is how you can reset the default browser settings:

Step 1: Open the browser, and then select the three vertical dots from the top right-hand corner.

Step 2: Select the ‘Settings’ option and then go to the ‘Advanced’ option from the left side menu.

Step 2: Now click on ‘Reset and Cleanup’ from the visible menu.

Step 3: Select the ‘Restore Settings’ option and click on the available blue button stating ‘Rest Settings.’

neterr reset settings

Fix 8: Use another network connection.

When utilizing a public network, such as those found in coffee shops or tourist attractions, the NET::ERR_CERT_AUTHORITY_INVALID issue may appear. These networks frequently do not route traffic securely, resulting in a mistake.

If your computer is connected to a public network, try accessing your website over your smartphone’s mobile data. The goal here is to figure out if the problem was caused by the original network.

If the issue goes away when you use mobile data, you know you need to change networks. Signing up for a Virtual Private Network (VPN) is another way to secure your privacy if you frequently use public internet access (VPN).

Even if you use an insecure point of access, a reputable VPN service will help protect your data. If you want to utilize a good VPN service, you’ll have to pay for it, but it’ll be well worth it if you’re constantly on the move.

Fix 9: Turn off your VPN and antivirus software.

If you’re already utilizing a VPN and get the NET::ERR_CERT_AUTHORITY_INVALID issue, it’s possible that the service is to blame.

Turn off your VPN and antivirus software for the time being. Then, to make sure it’s not loading from your browser’s cache, try viewing your site again and forcing a refresh.

Whether the issue has disappeared, try re-enabling both services one at a time to see if the invalid certificate message appears again. This will show you who is to blame.

You can then try to update the software, contact the company’s support team for assistance, or hunt for another option.


Always obtain an SSL certificate from a reputable Certificate Authority. Many times, digital certificate issues arise because the browser is unable to recognize the certificate issued by an untrustworthy certificate authority. If it doesn’t work, try each of the suggestions in this article one at a time.

To protect your data, provide security to your users, and earn their trust, you’ll need an SSL certificate. Allowing some concerns to prevent you from using an SSL is not a good idea. SSL errors can be resolved if you understand how to debug them.