Two? I thought it was one.
Two? I thought it was one.
I am facepalming right now.
This is really not hard to understand. In case Aco didn't make it clear enough, I'll give it a whirl: It's a "20-slot" server with a 21st slot that's always kept empty so that reserved slot people can connect rather than the game automatically telling them the server is full. If you don't have a reserved slot, guess what? You don't get to fucking connect at 20/21.
Not rocket science.