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  1. Minecraft: Java Edition
  2. MC-261362

Cannot play multiplayer minecraft

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    • Icon: Bug Bug
    • Resolution: Invalid
    • None
    • 1.19.4
    • None
    • JDK 17
    • Unconfirmed
    • (Unassigned)

      I am having problems with connecting to Minecraft servers on any version.
      My friend is hosting a vanilla minecraft server which is unmodified. 
      I am sometimes able to connect for a moment but then I get instantlly disconnected with error messages.
      In the debug window for minecraft it doesn't give me much more information than the errors I gave.
      My friends server log also just says I disconnected.

      I have looked up the problems and seen that many people get them, I have tried everyones advice but it has never worked.
      I have uninstalled and reinstalled Minecraft, Java, Java JDK and many other programs.
      I have also looked up online what programs cause problems with minecraft and confirmed I don't have them.

      I have also seen people have been getting these problems for years now.
      There is probably a lot more things that I tried that I can't remember anymore.

      internal Exception: io.netty.handler.codec.DecoderException: java.util.zip.DataFormatException: incorrect header check

      internal Exception: io.netty.codec.DecoderException: java.util.zip.DataFormatException: unknown compression method

      internal Exception: io.netty.codec.DecoderException: java.util.zip.DataFormatException: invalid distance too far back

      Internal Exception: io.netty.handler.codec.CorruptedFrameException: length wider than 21-bit

      When he tried running an modded server, I additionally was getting this error:

      The game crashed whilst unexpected error
      Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.server.MinecraftServer.m6846()" because the return value of "net.minecraftforge.network.PacketDistributor.getServer()" is null

      When using a VPN I also get these problems but less frequently.

      While the VPN is on, I tend to also get the following errors:

      Internal Exception: java.net.SocketException: Connection reset

      Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(10) + length(8) exceeds writerIndex(15): UnpooledHeapByteBuf(ridx: 10, widx: 15, cap: 15/15)

       

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            White_X_Shadow White_X_Shadow
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              Created:
              Updated:
              Resolved: