Hi i made a server last month, and it was running fine for a couple of weeks, but now it has stopped working, however i can still connect to it and it comes up on the server list, i have a bt homehub router, thnx
Your internet/router/modem has restart and your Internal IP has switched to a different one. If you know what you're doing, find your internal ip again and switch em.
If you haven't a clue what i'm saying, go to run, type in cmd, wait for the black box to come up, type ipconfig. Look for Ip-address, or ipv4. You'll see numbers looking like 127.0.0.1 or 192.168.1.xxx Along those numbers. Usually the last number's (In our case xxx) go into the Port-forward section of your router. Aka where you put your ip-address, or you know the whole Ip-address.
Other solution: The port got deleted from your router settings.