I have received the following image from Koos ZS5KDK which prevented him from visiting the ZS Link OpenwebRX site.
In the event that you receive such an error you might implement the following solutions.
Fix ERR_SSL_PROTOCOL_ERROR by clearing Chrome’s and Firefox Browsing Data
It’s time to clear browsing data, cache and cookies. To do so, click on the 3 dots (right top of phone); 3 stripes (right top of browser) and clear your browsing data, cache and cookies. Not fixed then visit the two sites beneath that will assist you with the error.
https://www.thesslstore.com/blog/fix-err-ssl-protocol-error/
https://comodosslstore.com/blog/ssl-errors-how-to-fix-ssl-certificate-errors-on-chrome-firefox.html
