A Comprehensive Guide to Fixing the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error

The internet is a vital element of our everyday lives in the modern world. But running into problems when surfing may be annoying, particularly if we don't know how to repair them. When accessing HTTPS websites, one such error is the err_ssl_version_or_cipher_mismatch error. Numerous factors, including out-of-date browser versions, SSL certificates, and cipher suites, can cause this error. In this post, we'll look at a number of fixes for this issue, so you can resume surfing without any problems.

What does the error Err_SSL_Version_or_Cipher_Mismatch mean?

When accessing HTTPS websites, the err_ssl_version_or_cipher_mismatch error is a frequent occurrence. Your connection is not private, and "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" are two common error messages. When the browser's SSL/TLS version or cipher suite is incompatible with the SSL certificate that the website is using, this error occurs. Older encryption software, SSL certificates, and browser versions are just a few of the potential causes of this discrepancy.

Fixing the SSL version or cipher mismatch error

The following techniques may be used to resolve the err_ssl_version_or_cipher_mismatch error:

Method 1: Delete All Browsing Data

The err_ssl_version_or_cipher_mismatch problem may be resolved by deleting the cache and cookies from your browser. Follow these steps to accomplish this:

Step 1: Access the settings of your browser.

Step 2: Select "Privacy and Security" from the menu.

Step 3: Select "Clear Browsing Data."

Step 4: Choose "Cached Images and Files" and "Cookies and Other Site Data."

Step 5: Select "Clear Data."

Try visiting the page again to check if the issue has been fixed after deleting your browser history.

Method 2: Upgrade your browser

You may also be able to fix the err_ssl_version_or_cipher_mismatch issue by updating your browser. Out-of-date browser versions might not support the SSL/TLS version or cipher suite that the website uses. The methods listed below may be used to upgrade your browser:

Step 1: Launch your browser.

Step 2: Find the options for the browser.

Step 3: Locate and choose the "Update" option.

Step 4: Click "Update" to install an update if one is available.

Try visiting the page again to check if the issue has been fixed after upgrading your browser.

Method 3: Turn off SSL scanning in antivirus programs.

Antivirus software that intercepts SSL transmission and scans it for malware may cause the err_ssl_version_or_cipher_mismatch error. You could try turning off SSL scanning in your antivirus program to resolve this issue. This is how you do it:

Step 1: Launch your antivirus program.

Step 2: Locate and choose the "Settings" or "Preferences" option.

Step 3: Locate and deactivate the "SSL Scan" option.

Check to see whether the issue has been fixed after stopping SSL scanning by attempting to visit the website again.

Method 4: Turn on TLS 1.2 in your browser.

Your browser's TLS 1.2 support may also be able to resolve the err_ssl_version_or_cipher_mismatch problem. Modern websites often use the SSL/TLS protocol's most recent version, TLS 1.2. Follow these instructions to make your browser support TLS 1.2:

Step 1: Access the settings of your browser.

Step 2: Select the "Security" submenu.

Step 3: Locate and choose the "Advanced" option.

Step 4: Locate and activate the "TLS" option.

Check to verify whether the issue has been fixed after activating TLS 1.2 by attempting to visit the website once again.

Method 5: Turn off the QUIC Protocol

Google Chrome uses the QUIC protocol to make surfing quicker. This protocol, however, sometimes results in the err_ssl_version_or_cipher_mismatch error. You could try turning off the QUIC protocol in Chrome to resolve this issue. This is how you do it:

Step 1: Launch Google Chrome.

Step 2: Type "chrome://flags" in the URL bar and hit Enter.

Step 3: Locate and deactivate the "Experimental QUIC Protocol" option.

Step 4: Relaunch Chrome to make the changes effective.

Check to see whether the issue has been fixed after turning off the QUIC protocol by attempting to visit the website again.

Conclusion

There are various ways to resolve the err_ssl_version_or_cipher_mismatch problem, which may be annoying. You may try deleting your browsing history, upgrading your browser, turning off SSL scanning in your antivirus program, turning on TLS 1.2 in your browser, and turning off the QUIC protocol in Google Chrome, among other things. You won't have any difficulties returning to your browser if you use these techniques.