When connect to a private domain through Chrome) shows a warning that the connection is “not private or “untrusted” with ERR_CERTIFICATE_TRANSPARENCY_REQUIRED Error Code, even though the connection is secure and the domain is internally known and trusted within your company.

This is almost certainly caused by an invalid/expired SSL certificate. If you’re seeing it on all HTTPS sites, something is trying to put a man in the middle certificate in place. Everything is mostly working fine—no issues on Safari, etc.. However, most HTTPS sites in Chrome load with the error:

Your connection is not private

This warning message or any similar messages appear on any browser when there is something wrong with HTTPS connection between your device and the remote server. To make you clear about the error, Google Chrome shows you additional error codes like net: err certificate transparency required. This error code represents an SSL error which is usually not from your PC. It happens when an SSL certificate is expired or corrupted, or misconfigured on the web server.

However, Any bug in your browser or your PC also may create this issue. So, Still, there are things you can do to get rid of this problem.


Fix Error #1: Upgrade your Chrome browser

The earlier versions of Chrome browser can contain bugs that result in ERR CERTIFICATE TRANSPARENCY REQUIRED. You can fix problems of this kind by upgrading your browser to its latest version. Try this and see if the error is gone. To check for Google Chrome new version updates.

  1. Open Google Chrome & Copy this link: chrome://settings/help
  2. Paste the Link in New tab and click Enter.
  3. Google Chrome will automatically scan for new updates and will ask to update if any new update is available.

Fix Error #2: Check security software

Sometimes the security software you are using, such as firewall and antivirus software, can block your Internet connection or your web browser. You should check the settings of the product you use and see if it restricts your Chrome or your network connection. You may need to disable them to solve the problem if necessary.

Fix Error #3: Correct Time and Date on your PC.

  1. Click on the time and date on the taskbar.
  2. After that click on “Date and time settings.
  3. If you have windows 10 then make “Set time automatically” to “On.
  4. For other user when you will click on “Date and time settings” a new window will open and from there go to the tab “Internet Time.
  5. Click on “Change settings” and tick mark on “Synchronize with an Internet time server” and inside server select “” after that click on update now and then OK.
  6. Restart chrome and see if the issue is resolved or not.

Fix Error #4: Clear SSL Certificate Cache

Clearing SSL certificate cache can help you to repair ERR_CERTIFICATE_TRANSPARENCY_REQUIRED or any other SSL related errors. If you are a Windows user, You can do it very quickly.

  1. Press Windows Key + R to open RUN and then type inetcpl.cpl and click on OK to open Internet Properties.
  2. Go to Content tab, then click on Clear SSL state and click OK.
  3. Now click Apply followed by OK and Reboot your PC to save changes.

Fix Error #5: Clear the Internet Browsing Cookies and Cache

By clearing the browsing data of your browser can get rid out of ERR CERTIFICATE TRANSPARENCY REQUIRED Error Code. Corrupted browsing data or files in your Chrome browser can cause various issues. In this case you need to clear your browsing data.

NOTE: This method will clear your saved data in Google Chrome i.e., Autofill forms, Saved Password, History, etc. So proceed ahead with caution.

  1. Open Google Chrome & Copy this link: chrome://settings/clearBrowserData
  2. Paste the Link in New tab and click Enter. A pop-up will appear asking which things to clear.
  3. Select all the options and tap on Clear browsing data option.

That’s it. Check now, ERR CERTIFICATE TRANSPARENCY REQUIRED  Error is most probably fixed.

Fix Error #6: Resetting Chrome to Default

This is pretty easy fix that worked for many people. All you need to do is:

  1. In Google Chrome Address bar type this URL: chrome://flags/
  2. Press Enter button and it will load a page with Settings in Google Chrome.
  3. At the right side in the Settings Page click on ”Reset all to default”and restart the browser.

Now your Chrome Browser Settings are Reset to the Default Settings. So if the error cause was due to some recent changes made by you or 3rd party software in Chrome Browser then now the error would have probably stopped appearing.


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