Hi, I've been trying desperately to start this server for the past 24 hours with no prior server experience. I have the server up, I can log into it through localhost, and I gave a friend my ip found at ipchicken to use to connect, adding :25565 to the end of it. He was able to connect with significant lag. My port is correctly forwarded. I'm only intending to play with one other person at a time. I tried again later and he can't connect at all, only getting that error. I would be forever grateful if someone more experienced in networking can troubleshoot this with me.