+net_usesocketsforloopback 1in your
ns_startup_dedi_args.txt, restart both client and server.
r2refers to the internal development name of Titanfall 2 given to it by Respawn. Titanfall 1 for example is
r1, Apex Legends is
r5, etc. The reason this wiki for example is called
r2northstar.gitbook.iois due to the fact that "Northstar" is a rather common name and as such often already reserved by other organisations and people. "R2Northstar" is both uncommon and therefore still available and ties "Northstar" with Titanfall 2, due to the
r2part of the name.