Players get blue/black screen, not able to chat.

Discussion in 'Bukkit Help' started by MikeA, Aug 3, 2011.

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    Players clients will crash. When they try to log back on, all they can see is a blue screen, not the sky, simply a light blue screen, they can't use chat either, also you have to use Task Manager to end the java process!

    This is not a client problem, it's been happening to MANY of the players on my server. Here is the error code that appears in the console.

    2011-08-03 15:41:13 [SEVERE] Bad packet id 81
    2011-08-03 15:41:13 [SEVERE]     at net.minecraft.server.Packet.a(
    2011-08-03 15:41:13 [SEVERE]     at net.minecraft.server.NetworkManager.g(
    2011-08-03 15:41:13 [SEVERE]     at net.minecraft.server.NetworkManager.c(
    2011-08-03 15:41:13 [SEVERE]     at
    2011-08-03 15:41:13 [INFO] /XXX.XXX.XX.XXX:40051 lost connection
    2011-08-03 15:41:18 [SEVERE] Bad packet id 81
    2011-08-03 15:41:18 [SEVERE]     at net.minecraft.server.Packet.a(
    2011-08-03 15:41:18 [SEVERE]     at net.minecraft.server.NetworkManager.g(
    2011-08-03 15:41:18 [SEVERE]     at net.minecraft.server.NetworkManager.c(
    2011-08-03 15:41:18 [SEVERE]     at
    2011-08-03 15:41:18 [INFO] /XXX.XXX.XX.XXX:40097 lost connection
    If anyone can help, please feel free to - I need it!
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    This makes me think that a common client mod is being used....

    PS Uhh why hide the IPs? You do know that EVERY interaction on the internet will show the IPs? :p
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    The only mods I use are X-Ray, Zombie Mod (Fly), and Optimine+Optifog,
    But I've verified that players aren't using these.
    And I am sure it's not this since I have to remove their player.dat file or teleport them to out spawn area when they log on.
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    Are they trying to spawn items with the value of -1 ?

    That can mess with a users .dat and cause it so they cant log in.
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    No - Spawning items isn't allowed, our server is survival/vanilla based. It has something to do with the chunks I guarantee, because one guy got the glitch and he re-opened MC and it worked fine, don't know why it "stays" with certain people.

    I've checked some stuff out and read this:

    I forced update to have a clear minecraft.jar - I still get the crashes.
    They are completely random and it happens to others on my server. One guy was simply chopping a tree and it started it.

    EDIT by Moderator: merged posts, please use the edit button instead of double posting.
    Last edited by a moderator: May 18, 2016
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    Chopping trees, eh? Sounds like you might have ChopTree installed?
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