Okay I think I found the problem. I always thought the connection was going on fine in general, but although I have entered an IP, it always connected me via localhost. For some reason other people can't connect to the server hosted on my PC (not even from a PC, not just mobile) BUT the ports are open and forwarded. I have checked my ports with different port checkers and all told me the port I am using is open + the server itself even gave a connect/disconnect response on 2 of the port checkers. Do you have any idea why the game client wouldn't connect to the server from outside?