Follow these steps to troubleshoot and resolve the ERR_SSL_PROTOCOL_ERROR:
1. Check the date and time on your device
– Ensure your system’s date and time are set correctly.
– Incorrect date/time can cause SSL certificate validation failures.
2. Clear browser cache and cookies
– Open your browser settings.
– Find the option to clear browsing data.
– Choose cache and cookies, then clear data.
3. Disable antivirus or firewall temporarily
– Some security software can interfere with SSL connections.
– Temporarily disable your antivirus or firewall.
– Try reaccessing the site.
– If successful, add an exception for the site in your security software.
4. Check SSL/TLS settings in your browser
– Access your browser’s advanced settings.
– Look for SSL/TLS options.
– Ensure that TLS 1.2 and TLS 1.3 are enabled.
5. Update your browser
– Outdated browsers may have compatibility issues with modern SSL protocols.
– Check for and install any available updates for your browser.
6. Try incognito/private browsing mode
– Open an incognito or private browsing window.
– Attempt to access the problematic site.
7. Flush DNS cache
– Open Command Prompt (Windows) or Terminal (Mac/Linux).
– For Windows, type: `ipconfig /flushdns`
– For Mac, type: `sudo killall -HUP mDNSResponder`
– For Linux, type: `sudo systemd-resolve –flush-caches`
8. Check for malware
– Run a full system scan using reputable antivirus software.
– Remove any detected malware.
9. Disable browser extensions
– Temporarily disable all browser extensions.
– Try accessing the site again.
– If successful, re-enable extensions individually to identify the problematic ones.
10. Try a different network
– Connect to a different Wi-Fi network or use mobile data.
– This can help determine if the issue is network-related.
11. Contact the website owner
– If the error persists, the issue might be on the server side.
– Contact the website owner or support team to report the problem.
Hope this knowledge base helps you.