It has been a while since we supported this game, so it's a little vague for us as well, haha. I guess we forgot to add it to our readme.
The game works via Outgauge (Like LFS and RoR), so enabling that should do the trick. Can you follow this guide: http://wiki.beamng.com/OutGauge and follow step 2 and 3 (use 127.0.0.1) as IP and make sure the ports are the same?
If this works I'll make sure to add it on our readme.
Last edited by Bose321 on 30 Sep 2015, 12:15, edited 2 times in total.