[KB3126] Disable SSL/TLS filtering in ESET home and small office products for Windows

Issue

  • HTTPS websites fail to load, or you receive the error message "Connection is untrusted" when using your web browser with ESET products
  • Websites with SSL Certificates are not accessible
  • You receive the error message: "sec_error_reused_issuer_and_serial"
  • Root certificate not imported correctly
  • Disable and re-enable SSL/TLS
  • Temporarily disable SSL/TLS

Solution

Disable and re-enable SSL/TLS

Sometimes, the root certificate is not properly imported during the ESET home and small office products for Windows installation. This issue is often resolved by disabling and re-enabling SSL protocol filtering.

  1. Open the main program window of your ESET home and small office products for Windows.

  2. Press the F5 key to open Advanced setup.

  3. Click SSL/TLS, click the toggle next to Enable SSL/TLS to disable it and click OK.

  4. Press the F5 key to access Advanced setup again.

  5. Click SSL/TLS, click the toggle next to Enable SSL/TLS to enable it and click OK.

  6. Restart your computer.

You should now be able to access the web page that uses SSL certificates without interference. If the issue persists, temporarily disable SSL protocol filtering and try opening the web page you were unable to open.


Temporarily disable SSL/TLS

Potential security risk

Use this procedure only if instructed by ESET Technical Support.

Disabling SSL scanning will remove a layer of security provided by ESET home and small office products for Windows and could expose your system to security risks.

  1. Open the main program window of your ESET home and small office products for Windows.

  2. Press the F5 key to open Advanced setup.

  3. Click SSL/TLS, click the toggle next to Enable SSL/TLS to disable it and click OK.

You should now be able to access the web page that uses SSL certificates without interference.

Need further assistance? Contact ESET Technical Support.