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 Do you keep seeing err_ssl_protocol_error repeatedly while attempting to access a website or web page in google chrome
The Google Home Max is losing this helpful Nest Aware feature
Usually, that happens when the browser has trouble using the ssl (secure socket layer) protocol to establish a secure connection with the site.
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.