Issues Streaming HLS over HTTPS with NGNIX

I’ve configured a manual install of NGINX (1.17.10) with Ubuntu.

I’ve followed this to install: https://docs.peer5.com/guides/setting-up-hls-live-streaming-server-using-nginx/

I’ve then added SSL certification using LetsEncrypt - Xolphin ssl check says “The certificate could be verified and is installed properly”

I can stream hls (.m3u8) over http, but I can’t stream over https.

The fault I receive is:

Chrome: This site can’t provide a secure connection myserver sent an invalid response. Try running Windows Network Diagnostics. ERR_SSL_PROTOCOL_ERROR

Firefox developer: Error code: SSL_ERROR_RX_RECORD_TOO_LONG

Further examination showed no connection to my https stream

UPDATE

My server video was showing a 404 error but attributed to nginx 1.14, which I know is the Digital Ocean package version, which I’ve never installed but somehow its in there. Note that my http stream still works.

I uninstalled nginx (sudo apt-get purge nginx nginx-common)

The .conf file remained in place.

I reinstalled nginx-1.17.10. Once again I can stream to it, receive http and the SSL is recognised by SSL Check.

I can also identify in my developer “console” that an https stream connection is now being made. Everything is blue on the console and recognises nginx-1.17.10, but it still won’t play the stream!

JW PLayer shows a generic 232011 error.

I’ve asked for DO technical support but no response in four days :-(

Can someone advise how to clear this error and move this forward?