How to Repair Net::Err_Cert_Invalid in Windows 10

Sometimes when you visit a website, a page won’t load and an error message appears instead, indicating that hackers may be trying to steal your data.

Sometimes it can be a real error, but often you know you’re visiting a trustworthy site, but the error still appears. It happens mostly in the Chrome browser.

It also appears as a browser notification saying: “Your connection is not secure.” There are no device restrictions, as it can happen on anything – desktop, mobile, and tablet.

In this article, you will learn how to fix this error, commonly known as net::err_cert_invalid.

What are the reasons for the net::err_cert_invalid issue in Windows 10?

  • Another reason for the net::err_cert_invalid error is that a proxy server is enabled. A website may be unavailable if the connection to the local network is anonymous, i.e., in a proxy state.
  • Incorrect date and time settings are possible causes of the error. If the date and time are set incorrectly, the browser assumes that the SSL certificates are out of date or have expired.

How to fix net::err_cert_invalid in Windows 10?

Check the date and time settings

  1. Open the Settings app.
  2. Go to Time and language > Date and time.
  3. Make sure that the date and time are set correctly.
  4. Also, make sure that the Set time is turned on automatically.

Resetting Google Chrome

  1. Open up Google Chrome.
  2. Type chrome://settings/resetProfileSettings in the address bar or URL and press Enter.
  3. In the Reset Settings pop-up window, click Reset Settings.

Updating Google Chrome

  1. Go to chrome://settings/help and Google Chrome will update if necessary.
  2. Once the update is complete, restart your browser and visit the website where the problem occurred.

Frequently Asked Questions

  • Update Google Chrome.
  • Set the date and time.
  • Disable proxy servers.
  • Reboot Google Chrome.

It means that the certificate itself is so flawed that it is not accepted-sometimes by the certificate logic in the underlying operating system, and is sometimes rejected by additional validity checks in Chrome.

  1. Open the Settings app.
  2. Go to Time & Language -> Date & Time.
  3. Make sure that the date and time are set correctly.
  4. Also, make sure that the Set time automatically option is enabled.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.