Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error
Published: 2023-06-08 08:00:44

When you encounter the "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" error, it means that there is a problem with the SSL/TLS certificate or encryption settings on the website you are trying to access. This error typically occurs when there is a mismatch between the SSL/TLS version or encryption cipher supported by the browser and the server. Here are several steps you can take to fix this error:

Clear Browser Cache: Start by clearing your browser cache and cookies. Sometimes, cached data can interfere with the SSL/TLS handshake process and cause the error. Go to your browser's settings or preferences, find the option to clear browsing data, and make sure to clear the cache and cookies.

Check Date and Time Settings: Incorrect date and time settings on your device can cause SSL/TLS certificate verification failures. Ensure that the date, time, and timezone settings on your computer or mobile device are accurate.

Update Browser: Outdated browser versions may lack support for the latest SSL/TLS versions or ciphers. Update your browser to the latest version available. This ensures that you have the necessary security protocols and encryption algorithms to establish a secure connection with the website.

Disable Antivirus or Firewall: In some cases, antivirus software or firewalls can interfere with the SSL/TLS handshake process and cause certificate mismatches. Temporarily disable your antivirus or firewall software and try accessing the website again. If the error disappears, you may need to adjust the settings of your security software to allow secure connections.

Try a Different Browser: If the error persists, try accessing the website using a different browser. Different browsers may have different SSL/TLS support, and using an alternative browser can help determine if the issue is specific to your current browser.

Contact Website Administrator: If you continue to experience the "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" error on a specific website, it is possible that the website's SSL/TLS configuration is misconfigured. Contact the website administrator or support team and inform them about the error. They can investigate the issue on their end and take necessary actions to resolve it.

Check System Clock and Timezone: Ensure that the system clock and timezone settings on your device are correct. An incorrect clock or timezone can lead to SSL/TLS certificate validation errors.

Check for Proxy or VPN: If you are using a proxy server or VPN, disable it temporarily and try accessing the website again. Sometimes, proxy servers or VPNs can interfere with SSL/TLS connections and cause the error. If the error disappears after disabling the proxy or VPN, you may need to reconfigure or adjust the settings of your network connection.

By following these steps, you should be able to resolve the "[ERR_SSL_VERSION_OR_CIPHER_MISMATCH](https://www.wpoven.com/blog/how-to-fix-err_ssl_version_or_cipher_mismatch-error/)" error and establish a secure connection to the website. However, if the issue persists or if you encounter this error on multiple websites, it may indicate a more significant problem with your network configuration or device settings. In such cases, it is recommended to seek further assistance from a technical expert or your network administrator.