Learn what causes this error and how to resolve it for your wordpress website. Clear cache, check ssl, and update your browser for a quick fix. Err_ssl_protocol_error often indicates an expired, revoked, or improperly installed ssl certificate Whether you are the site owner or just trying to load a website, you can check a website's ssl certificate using qualys's ssl server test. Err_ssl_protocol_error occurs when a browser fails to verify the ssl certificate of a website, breaking the secure connection This typically results from issues related to outdated software, system misconfigurations, or invalid ssl/tls certificates.
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