I really hit a dead end and need some help. I set up four devices as follows:
Device 1: Raspberry Pi using Raspbian as the first device for Sync.
Device 2: MacBook Pro 13 Retina as the second device, using the 35 digits from the Raspberry to link the devices.
Device 3: Moto X Play using the QR_Code from the Raspberry Pi to link the devices.
Device 4: Lenovo T450s running Windows 7, using the 35 digits from the Raspberry to link the devices.
If I add a folder on device 1, 2 or 3 it will show up and sync with any file on any other device besides device 4.
If I add a folder on device 4, it will show and sync any file up on any device.
Somehow the Windows 7 device cannot find any shared folder from device 1, 2 or 3.
However any new file or folder on device 4 will be synced with device 1,2 and 3.
I deleted device 4 and added it as a new peer but same issue. I deinstalled Sync and reinstalled Sync on Windows 7 but same issue.