I have a Synology DS413j in my office, running Bittorrent Sync 1.2.82. Everyone in the office saves their work onto the the Synology drive, and the whole drive is shared with various laptops via btsync. When the laptops are in the office inside the LAN, everything works fine, but when a laptop is taken home, none of the folders update. Files added at home, appear as "Added file /File/Path" (inside the BTSync app), but there is no transfer, and the files do not appear on the Synology drive. Similarly files added to the Synology drive do not appear on the laptops, when the laptops are not inside the LAN. I have checked my router at home, and the port listed in the btsync app, is open for my laptop's IP address. I don't believe this is a timing issue, because I have left my laptop open and runnign for days at a time, but no files have synced in either direction.