"Can't keep up!" Server warn - Lag spikes for only one player on a specific sub-chunk?

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  • While playing on my modded server with a friend, in rare ocasions some chunks in the world make my ping rise up increasingly as long as I'm in that chunk until eventually I get disconnected. I don't understand how, but it only affects me and not my friend at all.


    This happened twice on this server. One was a chunk near the world spawn, very early in the game; and now months after I see one "ping killer" chunk again, on the sky while building a mob farm. My friend didn't believe me when I said only some sub-chunks (those inside the chunk that are separated by the Y level) in that area were making me lag and he put my connection at fault. So I made a video to prove how this is happening.


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    I don't understand this. Why on that place alone? Why only me? Do I "de-sync" with the server everytime I go up there and sync again when going back down?

    I've thought about using MCEdit but quickly gave up because I remembered that I can't download the world, remove the chunks and upload again because Aternos only allows uploads below 200MB. And guess what? My world is way above it. So I really see no other way on how I could fix this.


    FYI; my friend has basically the exact same setup as I do, with the same minecraft configs, same mods, and even the same crappy toasters that we call computers. Only difference is that he lives in another part of the city and has a different internet provider. You could say that maybe I'm experiencing package loss but I say it's impossible since it only happens on a specific place and we have used Aternos for years and this never happened before.

    • Official Post

    This is probably caused by bug in a mod which only happens under special circumstances.

    From our side we are not able to troubleshoot this.

    If you really want to troubleshoot this, you would probably need to set up a server on your pc with the same world, mods, configs etc. and try to remove mod by mod to find out where it comes from.

    However the chance that you get a bug like that fixed is nearly null.

  • Can't really do this since my computer can't handle a server and also I don't know anything about setting it up myself. I can live with this; provided that it does not happen frequently, I can move the building somewhere else.

  • Roman

    Closed the thread.