Cause: The SSL/TLS handshake process failed to establish a secure connection.
Possible reasons: Incorrect SSL/TLS version, incompatible cipher suites, expired or self-signed certificates.
Cause: The SSL/TLS certificate presented by the server has expired.
Solution: Renew the SSL/TLS certificate on the server.
Cause: The certificate authority (CA) that issued the SSL/TLS certificate is not recognized or trusted by the browser.
Solution: Use a certificate from a trusted CA or import the CA's root certificate into the browser's trust store.
Cause: The certificate authority (CA) that issued the SSL/TLS certificate is not recognized or trusted by the browser.
Solution: Use a certificate from a trusted CA or import the CA's root certificate into the browser's trust store.
Cause: The common name or subject alternative name (SAN) on the SSL/TLS certificate does not match the domain of the website.
Solution: Ensure that the certificate matches the domain it is intended for.
Cause: The web page contains a mix of secure (HTTPS) and non-secure (HTTP) content.
Solution: Ensure that all resources on the page (images, scripts, etc.) are loaded securely via HTTPS.