Playback Stops on KEF LSX II & Samsung S24 Ultra with Roon Server on Docker (ref#WOV8XW)

What best describes your playback issue?

· Music stops playing unexpectedly

What type of Zone is affected by this problem?

· *Network Zones* are affected.

Is the affected network Zone connected with Ethernet or WiFi?

· Ethernet

Does the issue affect all file formats?

· The issue affects *multiple/all* file formats.

Does the issue happen with local library music, streaming service music, or both?

· *Both streaming and local* *library* music are affected.

Do you encounter any playback errors with the "System Output" Zone?

· The System Output has the same problem as my other Zone.

Is your RoonServer machine running MacOS 15 Sequoia or above?

· I still can't see my endpoints as available Zones.

Do you have a complex network setup?

· Both the device and RoonServer are connecting to a *single router*

Please try rebooting your router.

· No, I'm still having trouble

Do you have an approximate timestamp of when the issue last occurred?

· The timestamp is detailled in my log output. The issue occurred in any racks from Tidal streaming quality (Max) or personal media (DSD, FLAC).

What are the make and model of the affected audio device(s) and the connection type?

· KEF LSX II connected with ethernet cable

Describe the issue

Hello,

I'm using Roon Server with Docker (https://hub.docker.com/r/steefdebruijn/docker-roonserver/) and sometimes my music stops playing correctly, with success or failure on each subsequent track. It's often with my KEF LSX II speakers (Roon Ready) and my Samsung S24 Ultra Phone but it's not the most important for my phone.

I checked my log file (RoonServer_log.txt) and found the following warning message:

root@myUnraid:/mnt/user/roon/data/RoonServer/Logs# tail -f RoonServer_log.txt | grep Warn


02/23 13:18:03 Warn: [116] FTMSI-B ti/9960A7C7: block downloader too much time locked
02/23 13:18:03 Warn: [60] FTMSI-B ti/3D375C18: block downloader too much time locked
02/23 13:27:33 Warn: [.NET ThreadPool Worker] [raat/tcpaudiosource] disconnecting + retrying
02/23 13:27:33 Warn: [RaatSender] [zoneplayer/raat] Error during streaming: System.Exception: serverside buffer overrun
02/23 13:27:33 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:27:33 Warn: [Broker:Transport] inactive signal path :(
02/23 13:27:35 Warn: [Worker (3)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:27:35 Warn: [Worker (3)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:27:36 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:27:37 Warn: [Worker (8)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:27:37 Warn: [Worker (8)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:27:38 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:27:39 Warn: [Worker (9)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:27:39 Warn: [Worker (9)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:27:40 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:27:41 Warn: [Worker (8)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:27:41 Warn: [Worker (8)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:27:42 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
^C
root@myUnraid:/mnt/user/roon/data/RoonServer/Logs# tail -f RoonServer_log.txt | grep Warn
02/23 13:37:35 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:35 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:35 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:37:42 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:42 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:43 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:37:44 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:44 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:45 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:37:46 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:46 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:46 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:37:47 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:47 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:48 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:37:50 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:37:50 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:37:51 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:39:15 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:39:15 Warn: [Worker (2)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:39:16 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:39:17 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:39:17 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:39:18 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:39:20 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:39:20 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:39:21 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:39:22 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:39:22 Warn: [Worker (1)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:39:23 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:39:24 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync sender clock to endpointKEF LSX II: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:39:24 Warn: [Worker (5)] [KEF Bureau] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:39:24 Warn: [Broker:Transport] [zone KEF Bureau] Track Stopped Due to Error
02/23 13:40:00 Warn: [Worker (2)] [S24 Ultra] [zoneplayer/raat] failed to sync sender clock to endpointDefault Output: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:40:00 Warn: [Worker (2)] [S24 Ultra] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:40:00 Warn: [Broker:Transport] [zone S24 Ultra] Track Stopped Due to Error
02/23 13:40:01 Warn: [Worker (5)] [S24 Ultra] [zoneplayer/raat] failed to sync sender clock to endpointDefault Output: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:40:01 Warn: [Worker (5)] [S24 Ultra] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:40:01 Warn: [Broker:Transport] [zone S24 Ultra] Track Stopped Due to Error
02/23 13:40:02 Warn: [Worker (11)] [S24 Ultra] [zoneplayer/raat] failed to sync sender clock to endpointDefault Output: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:40:02 Warn: [Worker (11)] [S24 Ultra] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:40:02 Warn: [Broker:Transport] [zone S24 Ultra] Track Stopped Due to Error
02/23 13:40:03 Warn: [Worker (3)] [S24 Ultra] [zoneplayer/raat] failed to sync sender clock to endpointDefault Output: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:40:03 Warn: [Worker (3)] [S24 Ultra] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:40:03 Warn: [Broker:Transport] [zone S24 Ultra] Track Stopped Due to Error
02/23 13:40:04 Warn: [Worker (2)] [S24 Ultra] [zoneplayer/raat] failed to sync sender clock to endpointDefault Output: Sooloos.Broker.Transport.ClockSyncResult
02/23 13:40:04 Warn: [Worker (2)] [S24 Ultra] [zoneplayer/raat] failed to sync clocks with any endpoints..giving up
02/23 13:40:04 Warn: [Broker:Transport] [zone S24 Ultra] Track Stopped Due to Error
02/23 13:43:00 Warn: [.NET ThreadPool Worker] [raat_ll/client] [Default Output] failed to connect(0) Cannot access a disposed object.

Could you please help me understand what this warning means and how I can resolve the issue?

Thank you in advance for your assistance.

Best regards,
Hieu

Describe your network setup

My router is an Opnsense but no network segmentation with my Unraid server hosting the Roon docker server (custom br0). No issue with a rpi with RoPieee (Roon client) in the same network of my Roon Server and so my KEF speaker (ethernet)

@Trung_Hieu_DO Roon on Docker is an unsupported configuration. Your post has been moved to the Tinkering category where other users with similar configurations may be able to provide you with ideas.

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