How To Fix err_ssl_version_or_cipher_mismatch

How To Fix err_ssl_version_or_cipher_mismatch

Written by Kenneth Sawyer, In How To, Published On
September 21, 2023

Before establishing a connection with a website, every respectable browser will perform a TLS handshake. During the TLS handshake, an SSL certificate is validated to ensure the site is legitimate and secure. If the website doesn’t have a current SSL certificate, all information exchanged with it is probably not secure. Even if a website doesn’t have an SSL certificate, visitors can still see it.

Does this indicate you can still visit a malicious website even if the TLS handshake fails? Not quite. Alternatively, you may encounter the error err_ssl_version_or_cipher_mismatch. This may happen in any web browser and is quite prevalent. It’s not the end of the world, and if you’re resourceful, you can still get to your preferred material.

If you get the err_ssl_version_or_cipher_mismatch error, what does it mean?

There are several reasons why this server cannot provide a secure connection.

The most frequent explanations are as follows:

  1. Unreliable Online Experience
  2. Inability to remove the browser’s cache and cookie data
  3. Needless Web browser extensions (also known as add-ons)
  4. The firewall prevents access to the website
  5. Antivirus software does not allow access to the site or deletes it.

How to Repair Chrome’s Error_Ssl_Version_or_Cipher_Mismatch?

How To Fix err_ssl_version_or_cipher_mismatch
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Chrome users frequently see an error reading “err_ssl_version_or_cipher_mismatch” while attempting to visit a website. The error indicates that the SSL certificate is invalid.

SSL certificates are used to verify the safety of a website. The err_ssl_version_or_cipher_mismatch error typically occurs when a certificate is too old. Of course, not all sites using an expired SSL certificate display this warning. Sites requiring users to enter sensitive information like their banking credentials or credit card numbers are particularly prone to this. Several potential solutions exist, so don’t despair.

Chrome’s workaround for the Err_Ssl_Version_or_Cipher_Mismatch

How To Fix err_ssl_version_or_cipher_mismatch (1)
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Follow these actions if you suspect the problem is due to a mismatch between your browser and the website’s SSL certificate.

  1. Start up Chrome.
  2. Put “chrome://flags” into the address bar.
  3. Simply enter “TLS” into the search bar.
  4. Mark the box labelled “TLS 1.3 support.”

Turn on the feature.

Chrome users can still get the err_ssl_version_or_cipher_mismatch error if they use the most recent version of the browser on a website with an older SSL certificate. In this scenario, you can use your browser’s settings to revert to a previous version of TLS.

  1. Get Chrome going.
  2. Put “chrome://flags” into the address bar.
  3. Look for the TLS chapter.
  4. The setting to “Enforce deprecation of legacy TLS versions” should be where you last saw it.
  5. Choose “Disable” from the menu’s pull-down.

Change Your Internet Preferences

How To Fix err_ssl_version_or_cipher_mismatch
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Enabling all TLS versions available on your OS is a workaround approach. The following instructions are meant to assist Windows users.

  • Select “Internet Options” from the results list and press “Enter.”
  • In the “Internet Properties” box, click the “Advanced” tab.
  • Look down to find the “Use TLS” radio buttons.
  • Please choose all that apply between “TLS 1.0” and “TLS 1.3.”
  • The “SSL 3.0” and “SSL 2.0” boxes should be checked.
  • Do what it says and click “Apply.”
  • When you’re ready, select “Ok.”
  • Chrome has to be restarted before attempting to reconnect to the site.

Keep in mind that changing these settings may compromise your online safety. If the issue remains after reverting to the factory settings, you might try replacing the bypass with anything else.


Why am I getting an “err_ssl_version_or_cipher_mismatch” error message, and what does it mean?

When the SSL handshake fails due to a discrepancy between the SSL version and cypher used by the client and server, the SSL/TLS protocol error “Err SSL version or cypher mismatch” is returned. A user’s web browser often displays this error message when they try to visit a secure website.

Why may an “err_ssl_version_or_cipher_mismatch” occur, and how can I fix it?

There are several potential causes of the “err ssl version or cypher mismatch” error, including the use of an outdated browser or operating system, the use of an SSL certificate that has expired or is no longer valid, problems with the server’s settings, or incorrect SSL configuration on either the server or client side.

How can I fix the “err_ssl_version_or_cipher_mismatch” error on my website?

If you see a “err ssl version or cypher mismatch” problem on your website, consider upgrading your SSL certificate, enabling the latest SSL protocols and cypher suites, and checking the server and client parameters. You might also want to look through your server logs for any issue messages or speak with your web hosting company for more help.

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