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How to Fix ERR_SSL_PROTOCOL_ERROR

Topic: Google Chrome Connection Errors | Status: Updated

What is this error?

ERR_SSL_PROTOCOL_ERROR is a common connection error in Google Chrome that occurs when there is a problem establishing a secure connection to a website. This error can be caused by issues such as outdated browser settings, firewall configurations, or problems with the website's SSL certificate.

How to Fix It

1. **Check the URL**: Ensure that the URL you are trying to access begins with "https://". A simple typo can trigger this error. 2. **Clear Browser Cache**: Go to Chrome Settings > Privacy and Security > Clear Browsing Data. Select "Cached images and files" and click "Clear data". 3. **Disable QUIC Protocol**: Type `chrome://flags/` in the address bar, search for "QUIC", and set "Experimental QUIC protocol" to "Disabled". Restart Chrome. 4. **Check Date & Time Settings**: Ensure your computer's date and time are correct. An incorrect date or time can cause SSL verification failures. 5. **Disable Browser Extensions**: Temporarily disable all extensions by going to Chrome Settings > Extensions. Restart Chrome and check if the error persists. 6. **Reset Chrome Settings**: Go to Chrome Settings > Advanced > Reset settings. Click on "Restore settings to their original defaults" and confirm. 7. **Check Firewall and Antivirus**: Temporarily disable your firewall and antivirus software to see if they are blocking the connection. If the error disappears, configure them to allow Chrome. 8. **Update Chrome**: Make sure your Chrome browser is up-to-date. Go to Chrome Settings > About Chrome, and follow any prompts to update. 9. **Try a Different Network**: Sometimes the issue may relate to your network. Try connecting using a different Wi-Fi network or switching to a mobile data connection. 10. **Contact Website Support**: If the error persists after trying all the above steps, the issue may be with the website. Reach out to their support team for assistance.
Disclaimer: This is an educational guide. We are not responsible for data loss. Always backup your system.