How to Repair NET CERT SYMANTEC LEGACY in Chrome Browser

Do you see the error code “NET CERT SYMANTEC LEGACY” in the Google Chrome window? This error is an SSL certificate error and occurs when you try to visit certain websites. Do not worry about it. This problem usually occurs for one of two reasons: either the wrong date and time on your system or a corrupt DNS configuration in your network profile.

What causes NET CERT SYMANTEC LEGACY error in Chrome?

The browser version does not accept old security certificates: Please note that Chrome versions newer than version 66 no longer accept old Symantec certificates. If you want to use Chrome, you need to uninstall the current version of Chrome and upgrade to an older version that does not reject older Symantec security certificates.

Incorrect time and date: It turns out that one of the most common causes of this problem for some Internet users is incorrect time and date. If the date and time are not correct, the security certificate cannot be verified. In this case, you can solve the problem by making sure that the date, time, and time zone are set to the correct values so that the security certificate will be accepted.

How to resolve the NET CERT SYMANTEC LEGACY error in Chrome?

Check the date and time settings in Windows 10

  1. Double-click the clock on the taskbar.
  2. Press the Windows + S key combination.
  3. Type the keyword Date into the search tool.
  4. Select Date and time settings to open the settings.
  5. Enable the Set time automatically option if this setting is disabled.
  6. If Set time automatically is selected, deselect this setting.
  7. Then click Edit.
  8. Enter the correct time and date.
  9. Click the Edit button.

Disabling Chrome extensions

  1. Click the Configure and manage Google Chrome button.
  2. Select Advanced tools and extensions.
  3. Turn off the toggle switch for each browser extension.

Disabling anti-virus utilities

The ERR_CERT_SYMANTEC_LEGACY error can sometimes be caused by third-party antivirus programs.

  1. Try temporarily disabling third-party antivirus utilities.
  2. This can usually be done by right-clicking on the antivirus icon in your taskbar and selecting the disable option.
  3. Then try opening the same site in Chrome with the antivirus program disabled.

Frequently Asked Questions

  1. Update the date and time on your computer.
  2. Use Chrome in incognito mode.
  3. Remove Chrome extensions.
  4. Delete website cookies.
  5. Delete Chrome cache files.
  6. Turn off SSL scanning in antivirus programs.
  7. Reset your Google Chrome settings.
  8. Contact your website administrator.

  1. Diagnose the problem with an online tool.
  2. Install an intermediate certificate on your web server.
  3. Create a new certificate signing request.
  4. Switch to a dedicated IP address.
  5. Obtain an SSL certificate with a wildcard.
  6. Change all URLs to HTTPS.
  7. Update your SSL certificate.

It often means that a security certificate was obtained or used by a fraudulent site. The address of this site does not match the address on the security certificate. The website is using a certificate issued to a different web address.

The "NET::ERR_CERT_SYMANTEC_LEGACY" error is usually accompanied by the message "This connection is not private". This error usually occurs because Google Chrome no longer recognizes the Symantec SSL / TLS certificate issued before June 1, 2016.

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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.