• 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 protocol filtering
• Temporarily disable SSL protocol filtering

Disable and re-enable SSL protocol filtering

In some cases, the root certificate is not properly imported during the ESET security products installation. This issue is often resolved by disabling and then re-enabling SSL protocol filtering. To do so, follow the steps below:

1. Open the main program window of your Windows ESET product.

2. Press the F5 key to open Advanced Setup.

3. Click Web and email, expand SSL/TLS, click the slider bar next to Enable SSL/TLS protocol filtering to disable it and then click OK.

4. Press the F5 key on your keyboard to access Advanced setup.

5. Click Web and email, expand SSL/TLS, click the slider bar next to Enable SSL/TLS protocol filtering to re-enable it, and then click OK.

6. Restart your computer.

You should now be able to access web pages that use SSL certificates without interference. If the issue persists, you can follow the steps in the next section to temporarily disable SSL protocol filtering to continue browsing without interruption.

Temporarily disable SSL protocol filtering

1. Open the main program window of your Windows ESET product.

2. Press the F5 key to open Advanced Setup.

3. Click Web and email, expand SSL/TLS, click the slider bar next to Enable SSL/TLS protocol filtering, and click OK.

You should now be able to access web pages that use SSL certificates without interference.

If you are still unable to resolve your issue, contact ESET Technical Support.