Sometimes, the computer which you are using might not be able to make connection with the website. Most of the websites use the SSL certificate in order to provide a security layer. There are certain things on a website which might be insecure without an SSL certificate like credit card processing, password processing, etc.

err_ssl_version_or_cipher_mismatch chrome

The error statement faced might look something similar to this: A secure connection cannot be established because this site uses an unsupported protocol. Error code: ERR_SSL_VERSION_OR_CIPHER_MISMATCH

When a user tries to visit a website, the browser automatically downloads the SSL certificate in order to securely connect to the website. Sometimes, what happens is that when the SSL certificate is download on your computer, it is the culprit of misconfiguration or malfunction and all the values in the certificate get messed up because of that. The error code ERR_SSL_VERSION_OR_CIPHER_MISMATCH is displayed when that happens and the website will become inaccessible to the user. There are a good amount of fixes which we have devised in order to get rid of these errors.

There are some things you must do in order to move forward:

  • Try visiting multiple websites and make sure whether you are able to visit the ssl enabled (https) websites. If you can do it, the problem you are facing might not be server sided.
  • Delete all the cache files as well as cookie files from your browser so that you can verify if they are the problem or not.
  • All the extensions which you are using must be disabled and you must check whether the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error goes away after that. If it did go away, you can enable them one by one in order to check if there is an extension which is responsible for this.
  • Make sure that you or any third party application did not mess with the firewall. There are chances that your firewall is blocking you from visiting the websites because you might have blocked something sensitive.
  • Check if the data connection you are using is working properly. If not, contact your network provider because they are the only ones who can solve these problems.
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We have created a fully fledged guide with multiple fixes just for you. Different computers use different configurations and the difference in those configurations might lead to different root causes. Make sure you follow all the fixes so that you do not need to jump from one thread to another and waste your time trying your luck.

Make sure to create a restore point before you follow the fixes because in case there are more problems raised due to misconfigurations, you can always turn back time and restore your system to the way it was.


Fix 1: Disable AntiVirus

Sometimes, the default security system of the antivirus software is responsible for the problems related to the SSL certificates. Make sure to open up your antivirus security software and look up for that system in order to fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. You can also try to fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error by disabling the antivirus software.

In case the ERR_SSL_VERSION_OR_CIPHER_MISMATCH still persists, move on to the next fix in order to find the root cause of this error

Fix 2: Configure Date & Time settings

Sometimes, if the date and time settings do not match with the ones of the website certificate, you might face a problem loading the website.

  1. You will find an icon on the taskbar which tells you the date and time when you hover over it. Click on it.
  2. Click the link which says Date and time settings.
  3. If you are using Windows 10 Operating system, click on the option which says ‘Set Time Automatically’ in order to enable it
  4. In other Operating Systems, you can click on the internet time and click on the option to ‘Automatically synchronize with Internet Time server’ and select the server.
  5. Apply all the changes and this should fix the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error.
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This is the best guide you can use in order to solve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. Make sure to follow each and every step which is listed under the fixes. We hope that this guide helps you out. Good luck.

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