Thank you all. But I am done with syncthing.
A friend uses Syncthing in a LAN only, here is what he did:
- each device has a DNS name, e.g. “computerA”, “computerB” (configured in DHCP/DNS of router)
- make sure you can ping each other via “ping computerA”, etc.
- disable: UPnP, global discovery, local discovery
- in Syncthing set e.g. “computerA:22000” or “computerB:22000” as address for each device
FYI
After latest update, virus scanner shows for syncthing.exe (win 32)
Trojan:Heur/QVM20.1.Malware.Gen