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How to Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error?

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aditi guleria
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2 min read

The "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" error occurs when there is a mismatch between the SSL/TLS version or cipher suite used by the web server and the web browser. This error prevents a secure connection from being established, and it typically indicates an issue with the SSL/TLS configuration. Here are some steps you can take to fix this error:

  1. Clear Browser Cache: Start by clearing your browser cache and cookies. Sometimes, outdated or conflicting cache data can cause SSL-related errors. After clearing the cache, try accessing the website again to see if the error persists.

  2. Check Date and Time Settings: Incorrect date and time settings on your computer can cause SSL certificate verification issues. Make sure that the date, time, and time zone settings on your computer are accurate. Refresh the website and check if the error is resolved.

  3. Update Your Browser: Ensure that you are using the latest version of your web browser. Outdated browsers may lack support for the latest SSL/TLS versions and cipher suites. Update your browser to the latest version available and see if the error is resolved.

  4. Disable Antivirus or Firewall Temporarily: In some cases, antivirus software or firewall settings can interfere with SSL connections. Temporarily disable your antivirus software or firewall and try accessing the website again. If the error is resolved, you may need to adjust the settings of your security software to allow secure connections.

  5. Check SSL/TLS Configuration on the Server: If you are the website owner or administrator, you should review the SSL/TLS configuration on your web server. Ensure that the server is configured to use up-to-date and secure SSL/TLS versions and cipher suites. Consult your server documentation or contact your web hosting provider for assistance in checking and updating the SSL/TLS configuration.

  6. Contact the Website Administrator: If you are a visitor and not the website owner, the error may be due to a misconfiguration on the website's server. Contact the website administrator and inform them about the error you are encountering. They should investigate the issue and resolve any SSL/TLS configuration problems on their end.

It's important to note that the specific steps to fix the "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" error can vary depending on the context and environment. If you are encountering this error on a specific website, reaching out to the website administrator or seeking assistance from technical support is recommended.