So i'm playing in a server with friends, hosted by one of said friends, and we keep getting disconnected, sometimes it's when using waystones, sometimes it's when dying, and rarely it just happens
It also lags alot when anyone leaves or joins the server, the server has 16gb of ram and 8 cores dedicated to it and according to the hoster it doesn't show any bug in the console, it appears as a normal disconnect from us.
This has been happening constantly today, and we have played "heavier" packs on the server without it crashing us so i don't know what it could be honestly but if anyone knows a fix PLEASE help!

I have bee trying to figure out similar things on several server locations.

I think due to the sheer size of the pack, there is far more information sent on joins than normally. Which causes the huge lag spikes on any server when players join.

The time outs are likely due to a similar issue with networking on a combination of server and client side.

Might be worth a shot to turn up the:
' network-compression-threshold=256
in the server.properties from its 256 default to 4x that amount or more.

Alright, btw could that same issue happen with the waystones? we also timeout most of the time when using waystones

I'm having the same issue, I just updated the compression threshold and that didn't do anything... has there been any updates on the situation. Additionally after I get the timeout issue it shows that my client is still connected to the server and I am not able to click the client connection via commands. The Timeouts started as an issue that would happen every hour, but now after a day the issue has progressed and the Timeout error happens immediately whenever I join the world.

This seems to be a general problem with using this many mods. You will notice huge TPS spikes when players join the game. During these spikes there arent any unreasonable spikes on CPU or network. Tested with a good cpu and a nic that had a full 1gbps connection. With several players setting off nuke arrows constantly the tps stayed around 20 and quickly came back up when it dipped, but when a player joined it dropped. Each player joining up to 15 players caused it to drop more and more. Even tho the CPU never went above 15% and the network never went above 25mbps.

There is either something really bad erroring outside of the debug logs, or there are just too many mods trying to send out information to players and the java instance cant handle it.

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