Hi, I'm not sure whether I should post here or on a WHS site - but here goes. I'm using BTSync between a number of devices (WHS Server, PC's and iPad). I can sync two devices when the server is not involved. I can also sync devices with the server when I am connected to the same LAN / WiFi. However, when I am not on the same LAN I cannot see the server on BTSync. I suspect it has something to do with server or router security and I might need to change / open the listening port on the server. I haven't tried (yet) connecting to a PC on the same LAN when I am not on the same LAN. Has anyone else come across this problem and if so, how did they resolve it? Thanks in advance for any help (and LOVE the product!). Paul S.