I have two servers I want to connect. One is Ubuntu 18.04, the other 20.04. I have installed syncthing on both machines using the synchthing deb archives. I have set the ufw rules to allow syncthing on both machines.
The 20.04 is on a home network with no proxy required. The 18.04 is on a corporate network. I have started the one on the corporate network with all_proxy set and all the http/s proxy variables set correctly.
I have configured both machines with each other’s device id, and both are sharing the default folder with each other.
Neither machine logs anything that looks like an error message, but they don’t connect. Both say they’re connecting to discovery servers, and both connect to a relay.
What could be going wrong here?