Tracks Slow to Load & Playback Randomly Stops on Synology 3615XS+ Roon Core

Hi @c2c2c2,

Thanks for letting me know that additional timestamp. I am taking a look through your diagnostics and here is what I am seeing at the timestamps you mentioned:

04/30 17:12:09 Trace: [Master Bedroom] [Enhanced, 24/44 FLAC => 24/96] [100% buf] [STOPPED @ 0:00] Rock It Till the Cows Come Home - Doug MacLeod
04/30 17:12:09 Trace: [dbperf] flush 0 bytes, 0 ops in 3 ms (cumulative 32356340 bytes, 15836 ops in 72510 ms)
04/30 17:12:09 Warn: [raat_ll/client] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] error writing to connection: System.NullReferenceException: Object reference not set to an instance of an object
  at Sooloos.Audio.Raat.Client._BeginWrite () [0x00053] in <20e726da17014e3fbb7592d73803b940>:0 
04/30 17:12:09 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] => Disconnected
04/30 17:12:09 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] lost client connection. Retrying
04/30 17:12:09 Trace: [push] restarting connection (Unable to read data from the transport connection: interrupted.)

It looks like your Powernode lost connection to your core and around the same time your Core also lost connection to our servers. More traces:

04/30 17:13:31 Warn: [raat/tcpaudiosource] send failed: The socket has been shut down
04/30 17:13:31 Warn: [raat/tcpaudiosource] disconnecting + retrying
04/30 17:13:31 Debug: [raat/tcpaudiosource] disconnecting
04/30 17:13:32 Info: [stats] 5030mb Virtual, 1825mb Physical, 1011mb Managed, 0 Handles, 69 Threads
04/30 17:13:35 Trace: [Master Bedroom] [HighQuality 13.6x, 24/176 FLAC => 24/96] [100% buf] [PLAYING @ 0:00] Rock It Till the Cows Come Home - Doug MacLeod
04/30 17:13:39 Warn: [Master Bedroom] [zoneplayer/raat] Endpoint failed to become ready in 10s. Proceeding in state Buffering
04/30 17:13:39 Trace: [Master Bedroom] [zoneplayer/raat] Endpoint Bluesound POWERNODE 2i State Changed: Buffering => Ready
04/30 17:13:39 Trace: [Master Bedroom] [zoneplayer/raat] wait for ready in 10000ms
04/30 17:13:39 Trace: [Master Bedroom] [zoneplayer/raat] Adjusting playback start offset from 50ms to 220ms
04/30 17:13:39 Trace: [Master Bedroom] [zoneplayer/raat] Doing 'ASAP' Start since we are just playing to one device
04/30 17:13:39 Trace: [Bluesound POWERNODE 2i @ 10.0.0.46:43563] [raatclient] SENT [18]{"request":"start","min_offset":220000000,"stream_sample":0}
04/30 17:13:39 Trace: [Master Bedroom] [zoneplayer/raat] Endpoint Bluesound POWERNODE 2i State Changed: Ready => Playing
04/30 17:13:39 Trace: [Bluesound POWERNODE 2i @ 10.0.0.46:43563] [raatclient] GOT [17] {"status":"Playing"}
04/30 17:13:39 Trace: [Bluesound POWERNODE 2i @ 10.0.0.46:43563] [raatclient] GOT [18] {"time":173968549846,"status":"Success"}
04/30 17:13:39 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40799
04/30 17:13:39 Debug: [raat/tcpaudiosource] connected
04/30 17:13:39 Warn: [raat/tcpaudiosource] send failed: Connection reset by peer
04/30 17:13:39 Warn: [raat/tcpaudiosource] disconnecting + retrying
04/30 17:13:39 Debug: [raat/tcpaudiosource] disconnecting
04/30 17:13:39 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40799
04/30 17:13:39 Debug: [raat/tcpaudiosource] connected
04/30 17:13:40 Trace: [Master Bedroom] [HighQuality 32.8x, 24/176 FLAC => 24/96] [100% buf] [PLAYING @ 0:00/4:10] Rock It Till the Cows Come Home - Doug MacLeod
04/30 17:13:41 Warn: [raat/tcpaudiosource] send failed: The socket has been shut down
04/30 17:13:41 Warn: [raat/tcpaudiosource] disconnecting + retrying
04/30 17:13:41 Debug: [raat/tcpaudiosource] disconnecting
04/30 17:13:41 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40799
04/30 17:13:41 Debug: [raat/tcpaudiosource] connected

Looks like your Powernode disconnected yet again and is having issues maintaining a stable connection here. Here is what I saw regarding your iPhone:

04/30 17:14:18 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] lost client connection. Retrying
04/30 17:14:18 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] connecting (attempt 1)
04/30 17:14:18 Trace: [push] restarting connection (Unable to read data from the transport connection: interrupted.)
04/30 17:14:18 Trace: [push] retrying connection in 34207ms
04/30 17:14:18 Warn: [rnet/RnetJsonClient] failed to connect Connection refused
04/30 17:14:18 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] client connection failed. Retrying in 500ms
04/30 17:14:19 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] connecting (attempt 2)
04/30 17:14:19 Warn: [rnet/RnetJsonClient] failed to connect Connection refused
04/30 17:14:19 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] client connection failed. Retrying in 750ms
04/30 17:14:20 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] connecting (attempt 3)
04/30 17:14:20 Warn: [rnet/RnetJsonClient] failed to connect Connection refused
04/30 17:14:20 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] client connection failed. Retrying in 1125ms
04/30 17:14:20 Trace: [Master Bedroom] [HighQuality 34.1x, 24/176 FLAC => 24/96] [100% buf] [PLAYING @ 0:41/4:10] Rock It Till the Cows Come Home - Doug MacLeod
04/30 17:14:21 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] connecting (attempt 4)
04/30 17:14:21 Warn: [rnet/RnetJsonClient] failed to connect Connection refused
04/30 17:14:21 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] client connection failed. Retrying in 1687ms
04/30 17:14:23 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] connecting (attempt 5)
04/30 17:14:23 Warn: [rnet/RnetJsonClient] failed to connect Connection refused
04/30 17:14:23 Trace: [raatserver] [RaatServer c2s-iPhone @ 10.0.0.5:50519] client connection failed. Giving up

At the 20:30 Timestamp:

04/30 20:32:40 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] => Disconnected
04/30 20:32:40 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] lost client connection. Retrying
04/30 20:32:40 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] connecting (attempt 1)
04/30 20:32:40 Trace: [raat] [Bluesound POWERNODE 2i @ 10.0.0.46:43563] => Connecting

At the 5:30 Timestamp:

05/01 05:31:47 Trace: [Master Bedroom] [Enhanced, 24/96 FLAC => 24/96] [100% buf] [PLAYING @ 1:50/3:53] Something You Get Through - Willie Nelson
05/01 05:31:48 Warn: [raat/tcpaudiosource] send failed: Connection reset by peer
05/01 05:31:48 Warn: [raat/tcpaudiosource] disconnecting + retrying
05/01 05:31:48 Debug: [raat/tcpaudiosource] disconnecting
05/01 05:31:48 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40703
05/01 05:31:48 Debug: [raat/tcpaudiosource] connected
05/01 05:31:50 Info: [stats] 5226mb Virtual, 1360mb Physical, 1015mb Managed, 0 Handles, 74 Threads
05/01 05:31:50 Warn: [raat/tcpaudiosource] send failed: The socket has been shut down
05/01 05:31:50 Warn: [raat/tcpaudiosource] disconnecting + retrying
05/01 05:31:50 Debug: [raat/tcpaudiosource] disconnecting
05/01 05:31:50 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40703
05/01 05:31:50 Debug: [raat/tcpaudiosource] connected
05/01 05:31:50 Warn: [raat/tcpaudiosource] send failed: Connection reset by peer
05/01 05:31:50 Warn: [raat/tcpaudiosource] disconnecting + retrying
05/01 05:31:50 Debug: [raat/tcpaudiosource] disconnecting
05/01 05:31:50 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40703
05/01 05:31:50 Debug: [raat/tcpaudiosource] connected
05/01 05:31:50 Warn: [raat/tcpaudiosource] send failed: Connection reset by peer
05/01 05:31:50 Warn: [raat/tcpaudiosource] disconnecting + retrying
05/01 05:31:50 Debug: [raat/tcpaudiosource] disconnecting
05/01 05:31:51 Debug: [raat/tcpaudiosource] connecting to 10.0.0.46:40703
05/01 05:31:51 Debug: [raat/tcpaudiosource] connected

I know you don’t want to hear this, but it clearly looks like your Core is disconnecting from both your iPhone and Bluesound around the same time, so whatever the issue is it is most certainly networking related. I have a few follow-up suggestions for you here:

  1. Can you let me know if your Bluesound zone has the newest firmware installed?
  2. Do you by any chance have “Open VSwitch” enabled on that Synology? (See this thread for more info)
  3. Have you tried a different Ethernet cable into the Synology Core yet? Might be worth a try in case the Ethernet cable itself has issues (I have seen this too often before).

Please let me know if any of my suggestions are helpful.

– Noris