I believe I'm running into the same issue with a Netgear ReadyNAS; with a clean btsync 1.4.77 install everything sync fine. After a restart all the syncs appear to stop: [12:35:27] total physical memory -1 max disk cache 2097152[12:35:27] Loading config file version 1.4.77[12:35:27] SF[8135]: Loaded folder /ReadyNAS1TB/btsync/LVids[12:35:27] SF[8135]: failed to read '/apps/btsync/config/xxxxxxxxxxxxxx.availability'[12:35:29] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:35:33] SF[8B38]: Loaded folder /ReadyNAS1TB/btsync/LFamPics[12:35:33] SF[8B38]: failed to read '/apps/btsync/config/xxxxxxxxxxxxxx.availability'[12:35:37] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:35:39] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:35:47] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:35:49] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:35:59] SyncEncryptHandler: bad shareID (STATE_BEGIN)[12:37:03] SF[EADB]: Loaded folder /ReadyNAS1TB/btsync/pub[12:37:03] SF[EADB]: failed to read '/apps/btsync/config/xxxxxxxxxxxxx.availability' I'll send the debug enabled logs to syncapp@bittorrent.com
