I am trying to control a UPNP player. The thing constantly goes offline. Trace logs below. I am on 4.1 release.
2023-12-25 14:55:41.337 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E' changed from OFFLINE (COMMUNICATION_ERROR): UPnP device with UDN FF31F09E-7AAF-270E-A4C0-10F6FF31F09E not yet registered to UNINITIALIZED
2023-12-25 14:55:41.348 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E' changed from UNINITIALIZED to UNINITIALIZED (DISABLED)
==> /var/log/openhab/openhab.log <==
2023-12-25 14:55:42.436 [DEBUG] [l.internal.UpnpControlHandlerFactory] - Media renderer handler created for Arylic Cabin with UID upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E
2023-12-25 14:55:42.446 [DEBUG] [ontrol.internal.util.UpnpControlUtil] - No .lst files in /var/lib/openhab/upnpcontrol/
2023-12-25 14:55:42.446 [DEBUG] [pnpDynamicCommandDescriptionProvider] - Adding command description for channel upnpcontrol:upnprenderer:FF31F09E-253B-7EF5-AF4E-0004FF31F09E:playlistselect
2023-12-25 14:55:42.447 [DEBUG] [pnpDynamicCommandDescriptionProvider] - Adding command description for channel upnpcontrol:upnprenderer:FF97F35D-4C0A-1EB1-DA5E-0714FF97F35D:playlistselect
2023-12-25 14:55:42.447 [DEBUG] [internal.handler.UpnpRendererHandler] - Initializing handler for media renderer device Arylic Cabin
==> /var/log/openhab/events.log <==
2023-12-25 14:55:42.441 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E' changed from UNINITIALIZED (DISABLED) to INITIALIZING
2023-12-25 14:55:42.448 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E' changed from INITIALIZING to UNKNOWN
2023-12-25 14:55:42.450 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'upnpcontrol:upnprenderer:FF31F09E-7AAF-270E-A4C0-10F6FF31F09E' changed from UNKNOWN to OFFLINE (COMMUNICATION_ERROR): UPnP device with UDN FF31F09E-7AAF-270E-A4C0-10F6FF31F09E not yet registered