I have three machines.
No 1: A Shuttle with Atom D525 CPU, running win 8.1
No 2: cubietruck, running Debian
No 3: HP 8540p, running win 7
Snycthing works good with No 2 and No 3.
When syncthing is running on the No 1 (Atom-CPU), the machine is very slow, you can not work well with this machine.
I tried to use a raspberry pi, mounted the Directories from No1 and run syncthing on the raspberry. Syncing with raspberry is very slowly, but working with machine No 1 is possible.
I have the Idea to mount the directories vrom No 1 on my cubietruck and run a second instance on then cubietruck to sync machine No 1 with No 2 and 3.
I tried this settings:
User cubie: Gui-Port 8080, protocoll Port 22000
User atom: GUI-Port 8081, protocoll Port 22001
I could open the the two GUIs, but the machine with 22001 was not in the “syncing-group”.