It's not pirated at all. I library share it with an old friend on Steam but that wouldn't have anything to do with it. I was perfectly able to connect with SOME friends before I attempted to open the ports. Now it won't allow me to join those friends previously mentioned.
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To make a long story short, I read a topic post stating that in order to fix the "game session is no longer available" error in the game, you need to type in your IP address to access your router information, and then set two ports, one with the port "3074" ...