I am running 1.4.103 on all devices (RPi / Windows 8). Btsync has weird problems to sync via the internet to my RPi. Sometimes it sysncs sometimes it just stops syncing. Lets take a look at the folder "Pictures". In the overview it shows me a green tick: But in the Peer list it shows that there are some files missing: Then I use my VPN which is running on the same RPi on which btsync runs, the synchronization is running well. Another PC has the same problem. Any ideas?