Yesterday, for the first time, I got a server for my roommate and I to play on the same network together. Everything worked out fine, he put in the right IP and we played minecraft for many hours. Today, I can still join fine, but he cannot. It says it can't connect to the server and he gets this: io.netty.channel.ConnectTimeoutException: connection timed out. We are both still connected to the same wifi, and it's up on both sides. Both of our firewalls are turned off and he types in the correct IP. Again, I can join fine. I tried restarting the server and my computer a couple times to no avail.
Please help! We built such a sick map, it's so cool looks like something out of LOTR. Please help