

If you see this error, the first and easiest place to start is to perform an SSL check on the certificate that is installed on the site. We recommend using the free SSL check tool from Qualys SSL Labs.

The ERR_SSL_VERSION_OR_CIPHER_MISMATCH error typically happens on older operating systems or browsers.īut that is not always the case. What Causes the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error? If for some reason the browser doesn’t like what it sees, such as a misconfiguration or unsupported version, your browser might display the following error: “ERR_SSL_VERSION_OR_CIPHER_MISMATCH” which prevents you from accessing the site.Ĭheck out a few recommendations on how to fix this error. What Is the ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error? Some of these include the TLS handshake, the certificate being checked against the certificate authority, and decryption of the certificate. When you visit a website running over HTTPS a series of steps are performed between the browser and the web server to ensure the certificate and SSL/TLS connection is valid.
