AS stops playing via upnp

Suddenly AS stopped playing via upnp. Playing via Computer Speakers is OK. But with upnp AS is writing: loading first track and stops. Connection via ethernet with my streamer is OK. I closed and started AS again, also rebooted the streamer/dac and restarted the iMac, but without any result.
First time this is happening.

Here the debug info:

Audirvana Mac Version 1.6.4 (10604)
macOS 11.5.2 with 16384MB RAM

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins NOT ACTIVE

UPSAMPLING:
SoX with Power Of Two upsampling
SoX filter parameters
Bandwidth at 0dB = 96.5%
Filter max length = 30000
Anti-aliasing = 100
Phase = 66%

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: OFF

LIBRARY SETTINGS:
Sync list: 2 folders
AUTO: /Users/jhdevries/Music/Flac files
AUTO: /Users/jhdevries/Music/iTunes/iTunes Music
iTunes/Music library synchronization: not synchronized
Library database path: /Users/jhdevries/Library/Application Support/Audirvana/AudirvanaDatabase.sqlite

Remote Control server:
Listening on 127.0.0.1 on port 49355

ACTIVE STREAMING SERVICES

=================== AUDIO DEVICE ========================

Preferred device: JF LIGHT INDUSTRIES QUARK HD Model UID:JF Light Industries Quark HD UID:uuid:553582f9-e6c5-a50a-f181-d063b4023597

Selected device:
UPnP device at http://192.168.1.26:49152/uuid-553582f9-e6c5-a50a-f181-d063b4023597/description.xml
ID 0x0 Quark HD
Manufacturer: JF Light Industries
Model Name:
Model UID: JF Light Industries Quark HD
UID: uuid:553582f9-e6c5-a50a-f181-d063b4023597

6 available sample rates up to 192000Hz
44100
48000
88200
96000
176400
192000
Volume control: No
MQA capability
Auto-detect MQA devices: No
Not a MQA device, user set to not MQA
DSD capability: Raw DSD (MSB)
Device audio channels
Preferred stereo channels L:0 R:1
Channel bitmap: Ox3, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1
Avoid RAW PCM streams: No
UPnP/DLNA supported protocols:
http-get::audio/L16:DLNA.ORG_PN=LPCM
http-get:
:application/flac:*
http-get::application/x-flac:
http-get::application/ogg:
http-get::audio/flac:
http-get::audio/x-flac:
http-get::audio/aac:
http-get::audio/x-aiff:
http-get::audio/aif:
http-get::audio/aiff:
http-get::audio/dff:
http-get::audio/x-dff:
http-get::audio/dsd:
http-get::audio/x-dsd:
http-get::audio/dsf:
http-get::audio/x-dsf:
http-get::audio/m4a:
http-get::audio/x-m4a:
http-get::audio/matroska:
http-get::audio/x-matroska:
http-get::audio/mp1:
http-get::audio/mp4:
http-get::audio/mpeg:
http-get::audio/x-mpeg:
http-get::audio/ogg:
http-get::audio/vorbis:
http-get::audio/x-ape:
http-get::audio/ape:
http-get::audio/x-monkeys-audio:
http-get::audio/wav:
http-get::audio/x-wav:
http-get::audio/wave:
http-get::audio/x-ms-wma:
http-get::audio/x-ogg:
http-get::audio/x-scpls:
http-get::audio/x-vorbis+ogg:
http-get::audio/x-vorbis:
http-get::audio/x-wavpack:
http-get::video/mp4:
DLNA 1.5: No
Gapless playback: Yes
Missing events workaround: No
Can play native DSD: Yes
Volume Control: scalar
Number of channels: 2
Use as stereo device only: No

1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1

Stream ID 0x0 0 channels starting at 0
14 virtual formats:
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 44.1kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 44.1kHz finite length
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 88.2kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 88.2kHz finite length
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 176.4kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 176.4kHz finite length
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 48kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 48kHz finite length
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 96kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 96kHz finite length
2 ch Non-mixable linear PCM Interleaved 16 little endian Signed Integer 192kHz finite length
2 ch Non-mixable linear PCM Interleaved 24 little endian Signed Integer 192kHz finite length
2 ch Non-mixable linear PCM Interleaved 8 little endian Signed Integer 2822.4kHz finite length
2 ch Non-mixable linear PCM Interleaved 8 little endian Signed Integer 5644.8kHz finite length

0 physical formats

Current device transportInfo:
CurrentTransportState: PLAYING
CurrentTransportStatus: ERROR_OCCURRED
CurrentSpeed: 1
Current device MediaInfo:
NrTracks: 1
MediaDuration: 0:01:19
CurrentURI: http://192.168.1.9:49152/audirvana/audio_119.wav
CurrentURIMetadata: <?xml version="1.0" encoding="utf-8"?>dc:titleMagnificat 4. Omnes Generationes</dc:title>mpdupnp:classobject.item.audioItem.musicTrack</upnp:class>upnp:albumBach: Magnificat</upnp:album>upnp:originalTrackNumber4</upnp:originalTrackNumber>http://192.168.1.9:49152/audirvana/audio_119.wavdc:creatorPhilippe Herreweghe</dc:creator>upnp:artistPhilippe Herreweghe</upnp:artist>
nextURI: http://192.168.1.9:49152/audirvana/audio_120.wav
nextURIMetadata:

dc:titleMagnificat 5. Quia Fecit Mihi Magna</dc:title>
dc:creatorPhilippe Herreweghe</dc:creator>
upnp:artistPhilippe Herreweghe</upnp:artist>
upnp:genreCantata</upnp:genre>
upnp:albumArtURIhttp://192.168.1.9:49152/audirvana/artwork_0_120.jpg</upnp:albumArtURI>
upnp:albumBach: Magnificat</upnp:album>
upnp:originalTrackNumber5</upnp:originalTrackNumber>
upnp:classobject.item.audioItem.musicTrack</upnp:class>
http://192.168.1.9:49152/audirvana/audio_120.wav

PlayMedium: HDD
RecordMedium: NOT_IMPLEMENTED
WriteStatus: NOT_IMPLEMENTED

Current device AVT service description:

<?xml version="1.0"?> 1 0 TransportState no string STOPPED PLAYING TransportStatus no string OK ERROR_OCCURRED PlaybackStorageMedium no string PossiblePlaybackStorageMedia no string RecordStorageMedium no string PossibleRecordStorageMedia no string CurrentPlayMode no string NORMAL SHUFFLE REPEAT_ONE REPEAT_ALL RANDOM DIRECT_1 NORMAL TransportPlaySpeed no string 1 no RecordMediumWriteStatus string CurrentRecordQualityMode no string PossibleRecordQualityModes no string NumberOfTracks no ui4 0 2000 1 CurrentTrack no ui4 0 2000 1 CurrentTrackDuration no string CurrentMediaDuration no string CurrentTrackMetaData no string CurrentTrackURI no string AVTransportURI no string AVTransportURIMetaData no string NextAVTransportURI no string NextAVTransportURIMetaData no string RelativeTimePosition no string AbsoluteTimePosition no string RelativeCounterPosition no i4 AbsoluteCounterPosition no i4 CurrentTransportActions no string LastChange yes string A_ARG_TYPE_SeekMode no string ABS_TIME REL_TIME A_ARG_TYPE_SeekTarget no string A_ARG_TYPE_InstanceID no ui4 SetAVTransportURI InstanceID in A_ARG_TYPE_InstanceID CurrentURI in AVTransportURI CurrentURIMetaData in AVTransportURIMetaData SetNextAVTransportURI InstanceID in A_ARG_TYPE_InstanceID NextURI in NextAVTransportURI NextURIMetaData in NextAVTransportURIMetaData GetMediaInfo InstanceID in A_ARG_TYPE_InstanceID NrTracks out NumberOfTracks MediaDuration out CurrentMediaDuration CurrentURI out AVTransportURI CurrentURIMetaData out AVTransportURIMetaData NextURI out NextAVTransportURI NextURIMetaData out NextAVTransportURIMetaData PlayMedium out PlaybackStorageMedium RecordMedium out RecordStorageMedium WriteStatus out RecordMediumWriteStatus GetTransportInfo InstanceID in A_ARG_TYPE_InstanceID CurrentTransportState out TransportState CurrentTransportStatus out TransportStatus CurrentSpeed out TransportPlaySpeed GetPositionInfo InstanceID in A_ARG_TYPE_InstanceID Track out CurrentTrack TrackDuration out CurrentTrackDuration TrackMetaData out CurrentTrackMetaData TrackURI out CurrentTrackURI RelTime out RelativeTimePosition AbsTime out AbsoluteTimePosition RelCount out RelativeCounterPosition AbsCount out AbsoluteCounterPosition GetDeviceCapabilities InstanceID in A_ARG_TYPE_InstanceID PlayMedia out PossiblePlaybackStorageMedia RecMedia out PossibleRecordStorageMedia RecQualityModes out PossibleRecordQualityModes GetTransportSettings InstanceID in A_ARG_TYPE_InstanceID PlayMode out CurrentPlayMode RecQualityMode out CurrentRecordQualityMode Stop InstanceID in A_ARG_TYPE_InstanceID Play InstanceID in A_ARG_TYPE_InstanceID Speed in TransportPlaySpeed Pause InstanceID in A_ARG_TYPE_InstanceID Seek InstanceID in A_ARG_TYPE_InstanceID Unit in A_ARG_TYPE_SeekMode Target in A_ARG_TYPE_SeekTarget Next InstanceID in A_ARG_TYPE_InstanceID Previous InstanceID in A_ARG_TYPE_InstanceID SetPlayMode InstanceID in A_ARG_TYPE_InstanceID NewPlayMode in CurrentPlayMode GetCurrentTransportActions InstanceID in A_ARG_TYPE_InstanceID Actions out CurrentTransportActions

Current device RootDevice description:

<?xml version="1.0"?> 1 1 urn:schemas-upnp-org:device:MediaRenderer:1 Quark HD JF Light Industries https://opensourceprojects.eu/u/medoc/profile/ UPnP front-end to MPD UpMPD 42 https://opensourceprojects.eu/p/upmpdcli/code/ upmpdcli version 1.4.7 libupnpp 0.17.2 image/png 64 64 32 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/icon.png /uuid-553582f9-e6c5-a50a-f181-d063b4023597/presentation.html uuid:553582f9-e6c5-a50a-f181-d063b4023597 urn:schemas-upnp-org:service:AVTransport:1 urn:upnp-org:serviceId:AVTransport /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-schemas-upnp-org-service-AVTransport-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-schemas-upnp-org-service-AVTransport-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-schemas-upnp-org-service-AVTransport-1 urn:schemas-upnp-org:service:RenderingControl:1 urn:upnp-org:serviceId:RenderingControl /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-schemas-upnp-org-service-RenderingControl-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-schemas-upnp-org-service-RenderingControl-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-schemas-upnp-org-service-RenderingControl-1 urn:schemas-upnp-org:service:ConnectionManager:1 urn:upnp-org:serviceId:ConnectionManager /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-schemas-upnp-org-service-ConnectionManager-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-schemas-upnp-org-service-ConnectionManager-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-schemas-upnp-org-service-ConnectionManager-1 urn:av-openhome-org:service:Info:1 urn:av-openhome-org:serviceId:Info /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Info-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Info-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Info-1 urn:av-openhome-org:service:Time:1 urn:av-openhome-org:serviceId:Time /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Time-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Time-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Time-1 urn:av-openhome-org:service:Volume:1 urn:av-openhome-org:serviceId:Volume /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Volume-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Volume-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Volume-1 urn:av-openhome-org:service:Credentials:1 urn:av-openhome-org:serviceId:Credentials /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Credentials-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Credentials-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Credentials-1 urn:av-openhome-org:service:Playlist:1 urn:av-openhome-org:serviceId:Playlist /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Playlist-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Playlist-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Playlist-1 urn:av-openhome-org:service:Radio:1 urn:av-openhome-org:serviceId:Radio /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Radio-1.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Radio-1 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Radio-1 urn:av-openhome-org:service:Product:2 urn:av-openhome-org:serviceId:Product /uuid-553582f9-e6c5-a50a-f181-d063b4023597/urn-av-openhome-org-service-Product-2.xml /uuid-553582f9-e6c5-a50a-f181-d063b4023597/ctl-urn-av-openhome-org-service-Product-2 /uuid-553582f9-e6c5-a50a-f181-d063b4023597/evt-urn-av-openhome-org-service-Product-2

UPnP devices found : 2
Device #0: ID 0x0 Quark HD UID: uuid:553582f9-e6c5-a50a-f181-d063b4023597 Location: http://192.168.1.26:49152/uuid-553582f9-e6c5-a50a-f181-d063b4023597/description.xml
Device #1: ID 0x0 [TV] UE48JU7000 UID: uuid:b23104bf-3f6b-47d9-8c9b-956197893c64 Location: http://192.168.1.15:9197/dmr

CoreAudio audio path, buffer I/O frame size: 0

Max. memory for audio buffers: 2890MB
Exclusive access: Enabled
Integer mode: Enabled

Local devices found : 1
Device #0: ID 0x32 Built-in Output Manufacturer: Apple Inc. Model UID: AppleHDA:122 UID: AppleHDAEngineOutput:1B,0,1,2:0 Model Name: Apple Inc. Built-in Output

Have you tried to completely power off the endpoint and power it on again after 30 sec?

Thank you for your advice. I did it and AS is playing again. Still I am asking myself what was the reason AS was stopping. so suddenly and not playing again.