DLNA: Jellyfin fails to cast to Denon Heos device

[r0bbie]

Describe the bug
In Jellyfin, if I go to the "Cast" button I can see my Denon Heos device. If I select it the UI does appear to connect to the device (shows as selected in the top bar, and if I click the Cast button again see the alternative dialog with "Disconnect" option). However, if I attempt to play a song nothing happens.

System (please complete the following information):

• OS: Ubuntu 20.04.2 LTS
• Virtualization: N/A
• Clients: Tested in browser and Jellyfin Media Player app
• Browser: Latest Firefox / Chrome
• Jellyfin Version: 10.7.5
• Playback: Appears to apply to any song I attempt to play regardless of format, when casting via DLNA
• Installed Plugins: AudioDB, Fanart, Kodi Sync Queue, Last.fm, MusicBrainz, OMBd, Open Subtitles, Playback Reporting, TVmaze, TheTVDB, Trakt
• Reverse Proxy: Apache
• Base URL: /
• Networking: Local network
• Storage: Local

To Reproduce

1. Go to "Cast" icon
2. Select Denon HEOS DLNA output
3. Try to play a song
4. Nothing happens (no song appears to play at all in interface, and obviously no audio output)

Expected behavior
Song successfully plays in Jellyfin, casting to DLNA (Denon Heos) device

Server Logs

[2021-08-11 13:24:44.552 +00:00] [INF] [126] Jellyfin.Plugin.PlaybackReporting.EventMonitorEntryPoint: Saving playback tracking activity in DB
[2021-08-11 13:24:44.556 +00:00] [INF] [126] Trakt.ServerMediator: Playback Stopped
[2021-08-11 13:24:44.647 +00:00] [INF] [26] Emby.Dlna.DlnaManager: No matching device profile found. The default will need to be used.
FriendlyName:Heos Bedroom
Manufacturer:Denon
ManufacturerUrl:http://www.denon.com
ModelDescription:
ModelName:HEOS 5
ModelNumber:DWS-5000 3.0
ModelUrl:
SerialNumber:NOT CONFIGURED

[2021-08-11 13:24:44.647 +00:00] [INF] [26] Emby.Dlna.DlnaManager: No matching device profile found. The default will need to be used.
FriendlyName:Heos Bedroom
Manufacturer:Denon
ManufacturerUrl:http://www.denon.com
ModelDescription:
ModelName:HEOS 5
ModelNumber:DWS-5000 3.0
ModelUrl:
SerialNumber:NOT CONFIGURED

[2021-08-11 13:24:44.647 +00:00] [INF] [26] Emby.Dlna.DlnaManager: No matching device profile found. The default will need to be used.
FriendlyName:Heos Bedroom
Manufacturer:Denon
ManufacturerUrl:http://www.denon.com
ModelDescription:
ModelName:HEOS 5
ModelNumber:DWS-5000 3.0
ModelUrl:
SerialNumber:NOT CONFIGURED

(above block just repeats in log)

Screenshots

Additional context
I've copied everything I could see relevant from the server logs, but if there's anything else helpful I can provide to debug this please just let me know.

Note I've also checked the Denon Heos device itself is running latest firmware (as of 11 Aug 2021)

[christf]

I noticed the same symptom. I can however use DroidUPnP as a UPNP controller to play that very same media file from the jellfin dlna server to the very same dlna / UPNP renderer.

This is with the jellyfin docker image with the image 0aa773b67433

[PowerUser64]

I'm running into the same issue. However, I'm getting an error from the AVR that says "Unable to play media due to unsupported format." I'm able to play from Jellyfin's files by opening them from the "Music Servers" section of the menu on the receiver or the HEOS app, which is certainly better than nothing. It would be nice to be able to play things directly from the Jellyfin app though.

[jellyfin-bot]

This issue has gone 120 days without an update and will be closed within 21 days if there is no new activity. To prevent this issue from being closed, please confirm the issue has not already been fixed by providing updated examples or logs.

If you have any questions you can use one of several ways to contact us.

[r0bbie]

This issue is still occurring. Just tested on Jellyfin 10.8.10, and Denon Heos updated to latest software. Still the exact same issue as reported - logs and screenshots as provided in original bug report. Please don't close @jellyfin-bot..

[dstolpmann]

Casting to a HEOS device works for me, but only if I disable HTTPS in Jellyfin. If it is enabled, my receiver shows "Unable to play" on its display.

[Shadowghost]

@dstolpmann: This specific error should already be fixed in master. We're now forcing http+ip for DLNA because apparently devices can not handle https and hostnames reliably.

@r0bbie: The logs in the OP don't really help debugging this, we'd need full communication logs between the server and the client (which are difficult to get in current stable release). Generally debugging DLNA without actually having the device is quite difficult and frankly often not worth the time considering there are usually that many other ways to playback media on the device.

[PowerUser64]

Casting to a HEOS device works for me, but only if I disable HTTPS in Jellyfin.

I have had HTTPS disabled since I started using jellyfin and it still hasn't ever worked for me. Is there somewhere other than the networking admin panel you have to disable HTTPS in?

[MrZwickie]

I'm running into the same issue. However, I'm getting an error from the AVR that says "Unable to play media due to unsupported format." I'm able to play from Jellyfin's files by opening them from the "Music Servers" section of the menu on the receiver or the HEOS app, which is certainly better than nothing. It would be nice to be able to play things directly from the Jellyfin app though.

I had the same issue: Removing the ENV-var 'JELLYFIN_PublishedServerUrl' fixed it for me (see jellyfin/jellyfin#10005). Maybe this only works for docker, though.

[PowerUser64]

That's it!! I had that line too, removing it fixes this issue for me! Thanks for mentioning this @MrZwickie!!