daemon starts with Error: UPNP_E_INVALID_INTERFACE

[passi999]

Hello,

I'm running gmediarender on an old PI A+ with an USB sound card.
Starting the renderer manually by sudo /etc/init.d/gmediarender start works fine = BubbleUpnP will find the renderer and plays music on the USB sound card.
Starting the renderer at startup will lead to the following error message in the logfile ERROR [... | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (59s) and BubbleUpnp will not find the renderer

To make sure that the daemon will be started only after network is available, I already added $named to the Required-start section. No change.
# Required-Start: $remote_fs $syslog $named $all

Stopping and Starting the daemon with sudo systemctl stop gmediarender will not solve the problem. It will not even change anything.

Killing the process with sudo kill -9 and manually starting the deamon as described above will solve the issue.

I hope I'm not bothering you with some newbee configuration failure.

thanks for your support

Thanks & Regards

Passi

[passi999]

ERROR [2022-12-30 11:22:15.411785 | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (59s) ERROR [2022-12-30 11:22:16.417953 | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (58s) ERROR [2022-12-30 11:22:17.422672 | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (57s) ERROR [2022-12-30 11:22:18.427495 | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (56s) ERROR [2022-12-30 11:22:19.432154 | upnp] UpnpInit2(interface=(null), port=49494) Error: UPNP_E_INVALID_INTERFACE (-12 1). Retrying... (55s) INFO [2022-12-30 11:22:19.767133 | upnp] Registered IP=192.168.1.42 port=49494 INFO [2022-12-30 11:22:19.921126 | gstreamer] Query volume fraction: 0.100000 INFO [2022-12-30 11:22:19.921515 | control] Output initial volume is 0.100000; setting control variables accordingly. INFO [2022-12-30 11:22:19.921734 | control] Setting volume-db to -20.00db == #50 INFO [2022-12-30 11:22:19.923028 | main] Ready for rendering.

[mill1000]

You seem to be mixing SysV init and systemd. I'd recommend going with systemd.

This issue has been reported a few times (#244, #239 and #129). You might find a solution in #129 (comment)

[passi999]

Thanks a lot.
I switched to systemd as you recommend and added a sleep as recomended in #129.
I learned that you must NOT use -d parameter, if you start gemediarender from systemd.
Works perfectly now.