This reply has been reported for inappropriate content.
You can’t view WebSockets in a standard browser, so when you go directly to the WebSocket URL, the server will tell you the protocol it needs to update. This message is to keep you in line with the HTTP specification. Therefore, it does not mean that there is an update.
Regarding the connection error, check that the SSL certificate was created correctly, the “valid until” must be a valid date.
You can send us a screenshot of your “Mini HTTP Server” configuration and PJSIP configuration.