Err_ssl_protocol_error often indicates an expired, revoked, or improperly installed ssl certificate Learn how to fix the err_ssl_protocol_error with easy steps 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.
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Clear cache, check ssl, and update your browser for a quick fix.
Following the nine practical solutions presented in this guide works for resolving err_ssl_protocol_error on chrome as well as android systems, and localhost platforms
This article explores both the factors that generate ssl protocol errors, together with resolve methods specific to various browsers and systems.