Hi,
I’m facing the same issue, my jellyfin server is behind a Nginx reverse proxy and I used the server conf provided by the Jellyfin website (Nginx | Jellyfin) so that I can secure it with a SSL cert.
It works flawlessly with the Jellyfin Android app and the Kodi plugin but not with Symfonium.
Here are the errors I can find in the debug log :
2023-02-15 10:01:44.935 Verbose/jellyfin.add.client.info: Test url http://box.lezard-visuel.com:18096/ [0]: 400 [Bad Request] <html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body>
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
2023-02-15 10:01:44.935 Verbose/TestURL: --> [631] GET https://box.lezard-visuel.com:18096/
2023-02-15 10:01:44.935 Verbose/TestURL: --> [631] connection: close
2023-02-15 10:01:44.970 Verbose/TestURL: <-- [631] 400 Bad Request http://box.lezard-visuel.com:18096/web/ (35ms)
2023-02-15 10:01:44.971 Verbose/TestURL: <-- [631] Server: nginx/1.18.0 (Ubuntu)
2023-02-15 10:01:44.971 Verbose/TestURL: <-- [631] Date: Wed, 15 Feb 2023 09:01:44 GMT
2023-02-15 10:01:44.971 Verbose/TestURL: <-- [631] Content-Type: text/html
2023-02-15 10:01:44.971 Verbose/TestURL: <-- [631] Content-Length: 264
2023-02-15 10:01:44.971 Verbose/TestURL: <-- [631] Connection: close
2023-02-15 10:01:44.972 Verbose/TestURL: <-- [631] Strict-Transport-Security: max-age=31536000
2023-02-15 10:01:44.972 Verbose/TestURL: <-- [631] <html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body>
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
2023-02-15 10:01:44.972 Verbose/jellyfin.add.client.info: Test url https://box.lezard-visuel.com:18096/ [2]: 400 [Bad Request] <html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body>
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
Looks a lot like the same bug that has been reported in this thread but I’m running the current latest Android release (4.0.1) and this still doesn’t work.
Is there a way to fix this or is it a bug/regression that needs to be fixed on the Symfonium side ?
Best regards.
