Similar to Sync over "ethernet" only (actually over USB).
I’d like to use Syncthing over my USB tethering connection. But if I disable Wifi and cellular internet, Syncthing doesn’t use the ethernet connection. The web interface (127.0.0.1:8384) gives a net::ERR_CONNECTION_REFUSED, so it looks like the network interface is disabled if there is no internet connection.
How can I sync between Android and my PC (Linux) with a USB ethernet connection?