Did you try my luck? Is your Minecraft server running out of room?
Did you try my luck? Is your Minecraft server running out of room?
So here is the scoop: I know that going into Minecraft forums straight up feels weird and not like what people usually do, but to me, this problem just looks too hard or confusing to solve there. I decided to head over to places where people actually talk about computers, software, and networks instead. Also, those "bugs" on the official Minecraft site seem locked away forever as they get fixed, and it makes no sense because the error messages in the game are so vague. Setting up a server from your own PC is supposed to be easy; I've tried with Java versions 17 and 18 installed, set up port forwarding through my router, configured all firewalls imaginable, restarted every machine, even flushed the DNS records, and borrowed a newer router from a friend who did exactly the same thing. What happens is simple: friends trying to connect get timed out just a few seconds into it, and they experience what sounds like serious lag. The error message says something like "internal exception java.net.socketexception connection reset." I did some searching online and found that people keep finding different solutions, but each one breaks again after a little while. Most folks seem to end up using a VPN just to mysteriously fix something in the air or please an old god. Regarding IP questions: I'm not feeling like paying for a monthly subscription for software that worked perfectly years ago (I suspect it might have been Java 16 and Minecraft version 1.15?). Some people are guessing that the internet provider is at fault because packets get dropped randomly, and they describe it like data coming in waves from day to day. This feels pretty serious and I doubt it's normal since my other games and internet functions aren't acting up the same way. It's all about a consistent pattern: things start failing to send packages right away. It is just bizarre that this hits only a Minecraft server specifically, whether because of Java or something else. One thing I'm curious about is that I live in an apartment and my router is plugged directly into the wall without any modem. This has never been an issue before; I've hosted servers like this before, which is why it's not obvious to me what's wrong right now. I think I read somewhere that apartments usually have a communal kind of internet or some magic involved. All in all, I'm really stumped about what could have changed from years past, maybe Java itself, Minecraft, or something with my ISP. In any case, if someone who knows networking and software could give some advice, I'd be very grateful. This feels like an invisible curse to me right now.
I've been wondering something about living in an apartment where I stick my router right into the wall, without a modem. If you get internet from your landlord and follow normal rules then there must be more hardware somewhere. Usually, internet looks like this: ISP gives a line to a Modem, which connects to a Router that goes to your stuff (wired or wireless). Sometimes the Modem and Router are one box. My guess is that something has changed in how you get connected to your apartment. New tools, new settings, security changes, etc.. If the landlord already has a modem/router set up then plugging your own router in could cause trouble like Double NAT. You should start by talking to the landlord and see exactly how they deliver internet to your place. Also think that maybe someone else is messing with things while you're there.
Yeah I don't think it's a Java problem if the computer is actually working. I think it's more likely just about port numbers in your router or modem. If you make those ports open, maybe Minecraft still gets blocked from other devices. You can even run Minecraft on an old potato PC and still see it online as long as everything is set right. I know my big dual-core server had to turn the firewall off at one point for one of my Minecraft servers, but the rest were all fine with the firewall on. I figured that out eventually but don't really remember how lol