RC Cars PC playing online?

[Jaysun169]

Hey guys, I just bought RC Cars on Steam today. (the game just became available there recently) and it says on the store page that it features multiplayer via Internet/LAN.

However, I can't connect to my friends and my friends cant connect to my hosted game. Is there a port forward I need to do? What is that port? Or, if you have any tips as to why or how I can get multiplayer working please let me know. Thanks again!

-Jason