I already have. Not helpful at all, mostly because it's too confusing. The "answer" does not explain anything. If you could be so kind as to interpret that thread for me, I would be most pleased. When creating a username for a server, some people have been using caps locks instead of shift when capitilising a letter (if they did) the game (I believe) found this to be an invalid character and so didn't create a save folder properly, preventing people from connecting into the server. It's also entirely possible, the server you are trying to join is full, crashed, or some firewall software on your computer is preventing access to the server. Ok. This makes more sense. So, I do not have any capital letters or any characters other than letters. So the name thing is out of the question. And I don't have my firewall blocking the game.