gupnp-av-cp fails to set volume
I am running Ubuntu 22.04 Mate Desktop. I disabled ufw firewall.
I tried gupnp-av-cp of gupnp-tools from ubuntu repository and I had the following issue: https://askubuntu.com/questions/1436239/gupnp-av-cp-fails-to-set-volume-of-sony-bravia-on-lan-through-wi-fi
I removed that package then cloned and built it from this https://gitlab.gnome.org/GNOME/gupnp-tools repository.
I met the same issue and more. It fails to detect local TV at first. After a while it detects the TV but I get the following error when I attepmt to drag the volume slider:
** (gupnp-av-cp:5267): WARNING **: 14:58:46.091: Failed to get sink protocl info from media renderer 'uuid:00000000-0000-1010-8000-F0BF97C2CB09': Forbidden
** (gupnp-av-cp:5267): WARNING **: 14:58:46.107: Failed to get transport info from media renderer 'uuid:00000000-0000-1010-8000-F0BF97C2CB09':Forbidden
** (gupnp-av-cp:5267): WARNING **: 14:58:46.107: Failed to get media info from media renderer 'uuid:00000000-0000-1010-8000-F0BF97C2CB09':Forbidden
** (gupnp-av-cp:5267): WARNING **: 14:58:46.120: Failed to get volume info from media renderer 'uuid:00000000-0000-1010-8000-F0BF97C2CB09':Forbidden
** (gupnp-av-cp:5267): WARNING **: 14:58:52.067: Failed to set volume of uuid:00000000-0000-1010-8000-F0BF97C2CB09: Forbidden