Single zone - "An audio file loading slowly..."

spoke too soon, now failing on my ipad

03/03 19:30:18 Info: [zone iPadmini] OnPlayFeedback Playing
03/03 19:30:18 Trace: [iPadmini] [Lossless, 16/44 FLAC => 16/44] [100% buf] [PLAYING @ 0:00] The Fix - Elbow and the BBC Concert Orchestra / Mike Dixon
03/03 19:30:18 Trace: [prebuffer] ready 149940/441000 (34%) @ 0/358 sec
03/03 19:30:18 Trace: [prebuffer] ready 149940/441000 (34%) @ 0/299 sec
03/03 19:30:19 Trace: [analysis] analysis completed in 2349ms for 299s of FLAC 44.1kHz 16bit audio. loudness=-10.6483010142431LUFS dbTP=-0.262143323527108 noisestartms=0 noiseendms=298376 isdts=False mqa=0 for track 28601138 url=/media/WDRED1/My Music/My Music/Elbow and the BBC Concert Orchestra/The Seldom Seen Kid (Live at Abbey Road)/08 - The Fix.flac
03/03 19:30:19 Trace: [library] finished with 1 dirty tracks 1 dirty albums 7 dirty performers 1 dirty works 1 dirty performances 0 clumping tracks, 0 clumping auxfiles 0 compute tracks, 0 deleted tracks, 1 tracks to (re)load, 0 tracks to retain, 0 auxfiles to (re)load, 0 auxfiles to retain, and 11 changed objects
03/03 19:30:19 Debug: [library/index] updating search indices: 2 ops 0 adds, 0 removes
03/03 19:30:19 Trace: [push] restarting connection (Unable to read data from the transport connection: interrupted.)
03/03 19:30:19 Trace: [push] retrying connection in 34065ms
03/03 19:30:19 Trace: [dbperf] flush 5264 bytes, 2 ops in 0 ms (cumulative 659367 bytes, 536 ops in 5111 ms)
03/03 19:30:19 Trace: [analysis] analyzing (high priority) trackid=28601394 url=/media/WDRED1/My Music/My Music/Elbow and the BBC Concert Orchestra/The Seldom Seen Kid (Live at Abbey Road)/09 - Some Riot.flac
03/03 19:30:19 Info: [audiodevice] updating analysis info for current track because analysis finished
03/03 19:30:19 Info: [zoneplayer/signal] update playparams to gain=0dB peak=dB basems=0 noisestartms=0 noiseendms=298376
03/03 19:30:19 Info: [zoneplayer/signal] update playparams to gain=0dB peak=dB basems=0 noisestartms=0 noiseendms=298376
03/03 19:30:19 Info: [zoneplayer/signal] update playparams to gain=0dB peak=dB basems=0 noisestartms=-1 noiseendms=-1
03/03 19:30:19 Trace: [rnet/RnetJsonClient] no data received for >10000ms. Killing connection.
03/03 19:30:19 Warn: [rnet/RnetJsonClient] error writing to connection
03/03 19:30:19 Trace: [raatserver] [RaatServer iPadmini @ 192.168.1.20:57312] lost client connection. Retrying
03/03 19:30:19 Trace: [raatserver] [RaatServer iPadmini @ 192.168.1.20:57312] connecting (attempt 1)
03/03 19:30:19 Info: [transport] destroyed zone iPadmini was playing? True
03/03 19:30:19 Trace: [zone iPadmini] Suspend
03/03 19:30:19 Info: [zone iPadmini] OnPlayFeedback Stopped
03/03 19:30:19 Trace: [iPadmini] [zoneplayer/raat] Endpoint iPadmini State Changed: Prepared => Idle
03/03 19:30:19 Info: [audio/env] [zoneplayer -> stream] All streams were disposed
03/03 19:30:19 Info: [audio/env] [zoneplayer] All streams were disposed
03/03 19:30:20 Info: [brokerserver] Client disconnected: 192.168.1.20:57295

and then my roonserver apparently dies - laptop now looking for it and cant find it, so have to stop and restart roonserver to get it back again.