Server on Master Server but not in the game.

[Caleb David Mcgee]

Every time I host, it says ? for Players to max, X for the Ping, and it shows on the master server but does not show up in the game.
*So no one can join the game!*
(Good thing the name is said right!)
*Sometimes...
EDIT: Port fowarded! Case closed!

 

[Sapheros]

It means that your ports aren't forwarded. When you forward your ports, these problems won't exist any longer.

 

[MosaicMario]

https://wiki.srb2.org/wiki/Multiplayer#Hosting
This is pretty much all you need to know. If you want to forward your port you need to log in to your router and find the option where you can forward the port to your Computer.