I have a Mac and two Windows machines, as peers behind a router modem. An older Windows machine has begun to always stay in the “Disconnected” state (the other works fine). v.42 on both window machines. Downgrading to v.41 on the older machine fixed the problem. Something doesn’t work right in v.42 about connecting.
I thought it might be a firewall issue on the isolated machine because the syncthing log never says Established Connection. It reports can’t fetch release info from upgrades.syncthing.net and it can’t post a usage report to data.syncthing.net, reporting “no such host”. When I turn off the firewall, nothing changes. All machines have “dynamic” as the method of finding others.
The working windows machines shows the other at the proper IP (kcp://10.0.0.104:22020 tcp://10.0.0.104:22000). On the isolated machine it just says “dynamic”.