Home > error code sec_error_untrusted_issuer

How do I fix the error code sec_error_untrusted_issuer?

Published on April 11th, 2022

Error code sec_error_untrusted_issuer happens when the issuer of a security certificate is not trusted. This can happen for a variety of reasons, but usually it means that the issuer's certificate has expired or has been revoked. It can also happen if the issuer's certificate is self-signed or if the server's domain name does not match the issuer's domain name.

1. Use a trusted certificate authority (CA)

In order to use a trusted certificate authority (CA) in order to fix error code sec_error_untrusted_issuer, you must first install the certificate authority onto the server. Next, you must verify the certificate by using the Windows Certificate Manager. Finally, you must set the error code to sec_error_untrusted_issuer when it occurs.

2. Self-sign your certificate

  1. Open the command prompt and change to the location of your certificate
  2. Issue the following command to self-sign your certificate self-sign -certificate <path to certificate>
  3. If prompted to provide a password for the certificate, enter the password for the certificate
  4. If prompted to provide a PIN for the certificate, enter the PIN for the certificate
  5. If prompted to provide a subject name for the certificate, enter a name for the certificate
  6. If prompted to provide a subject alternative name for the certificate, enter a name for the certificate
  7. Click OK to continue
  8. Close the command prompt

3. Use a different browser

  1. Open a new browser tab and type "about:support" into the address bar.
  2. Click on the "About Firefox" link in the navigation bar at the top of the window.
  3. In the "About Firefox" window that opens, locate the "Firefox Version" section and click on the "Firefox 34" link.
  4. In the "Firefox 34" window that opens, locate the "Support" section and click on the "Troubleshooting Information" link.
  5. In the "Troubleshooting Information" window that opens, click on the "Firefox troubleshooting" hyperlink.
  6. In the "Firefox troubleshooting" window that opens, click on the "Refresh Firefox" hyperlink.
  7. Firefox will close and will open a new window with the updated information. If the "Refresh Firefox" link does not work, try clicking on the "Refresh Firefox" button in the "Firefox 34" window.
  8. If the "Refresh Firefox" button in the "Firefox 34" window does not work, try typing "about:support" into the address bar and clicking on the "Search" button.
  9. Click on the "Refresh Firefox" button in the "Troubleshooting Information" window that opens after refreshing Firefox.

4. Check your system time and date

  1. Open a command prompt window.
  2. Type the following command: time
  3. If the time command displays an error, consult the appropriate Microsoft TechNet article for more information.
  4. Type the following command to check the system time and date: date
  5. If the date command displays an error, consult the appropriate Microsoft TechNet article for more information.

5. Clear your browser's cache and cookies

  1. Open your browser and navigate to http://www.google.com/settings/search/
  2. In the "Search Settings" box, click the "Advanced" button.
  3. Under the "Privacy" section, click the "Content Settings" button.
  4. In the "Cookies" tab, click the "Clear cookies and data" button.
  5. Click the "Clear browsing data" button.
  6. Click the "Clear cache" button.
  7. Close your browser.