{"id":57299,"date":"2026-06-03T06:46:00","date_gmt":"2026-06-03T03:46:00","guid":{"rendered":"https:\/\/vpesports.com\/minecraft\/mods\/disconnect-packet-fix\/"},"modified":"2026-06-03T06:46:00","modified_gmt":"2026-06-03T03:46:00","slug":"disconnect-packet-fix","status":"publish","type":"mod","link":"https:\/\/vpesports.com\/minecraft\/mods\/disconnect-packet-fix\/","title":{"rendered":"Disconnect Packet Fix"},"content":{"rendered":"<p>A mod for Fabric and NeoForge-based Minecraft servers that works around the MC-271325 bug. This bug frequently causes the console to be spammed with exception stacktraces, e.g.:<\/p>\n<p>&#8220;`<br \/>\n[22:35:52] [Netty Epoll Server IO #5\/ERROR]: Error sending packet clientbound\/minecraft:disconnect<br \/>\nio.netty.handler.codec.EncoderException: Sending unknown packet &#8216;clientbound\/minecraft:disconnect&#8217;<br \/>\n\tat MC\/net.minecraft.network.handler.PacketCodecDispatcher.encode(PacketCodecDispatcher.java:47) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.handler.PacketCodecDispatcher.encode(PacketCodecDispatcher.java:14) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.handler.EncoderHandler.encode(EncoderHandler.java:26) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.handler.EncoderHandler.encode(EncoderHandler.java:12) ~[server-intermediary.jar:?]<br \/>\n\tat io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[netty-codec-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.ChannelOutboundHandlerAdapter.write(ChannelOutboundHandlerAdapter.java:113) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection$2.write(ClientConnection.java:530) ~[server-intermediary.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:940) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:966) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:934) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:984) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1025) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:306) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection.sendInternal(ClientConnection.java:350) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection.sendImmediately(ClientConnection.java:343) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection.send(ClientConnection.java:325) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection.send(ClientConnection.java:319) ~[server-intermediary.jar:?]<br \/>\n\tat MC\/net.minecraft.network.ClientConnection.exceptionCaught(ClientConnection.java:170) ~[server-intermediary.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:317) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.DefaultChannelPipeline$HeadContext.exceptionCaught(DefaultChannelPipeline.java:1377) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:346) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:325) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:907) ~[netty-transport-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.handleReadException(AbstractEpollStreamChannel.java:728) ~[netty-transport-classes-epoll-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:826) ~[netty-transport-classes-epoll-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:509) ~[netty-transport-classes-epoll-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:407) ~[netty-transport-classes-epoll-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.97.Final.jar:?]<br \/>\n\tat io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.97.Final.jar:?]<br \/>\n\tat java.base\/java.lang.Thread.run(Thread.java:1583) [?:?]<br \/>\n&#8220;`<\/p>\n<p>This mod serves to fix that until Mojang fixes this bug. The mod itself is extremely minimal, only using a single mixin to inject code to one method.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Works around the MC-271325 bug on Fabric and NeoForge servers (fixes &#8220;error sending packet clientbound\/minecraft:disconnect&#8221;)<\/p>\n","protected":false},"featured_media":57300,"template":"","meta":{"_minecraft_slug":"disconnect-packet-fix","_minecraft_project_id":"rd9rKuJT","_minecraft_author":"ascpixi","_minecraft_license":"MIT","_minecraft_downloads":257746,"_minecraft_follows":160,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"disconnect-packet-fix.zip","_minecraft_size_bytes":38750,"_minecraft_version_count":6,"_minecraft_updated_at":"2026-05-16T20:50:13.764670Z","_minecraft_date_created":"2024-07-07T04:13:05.003295Z","_minecraft_date_modified":"2026-03-30T08:41:40.654832Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/disconnect-packet-fix","_minecraft_icon_attachment_id":57300,"_minecraft_imported_at":"2026-06-03T03:46:01+00:00","_minecraft_import_hash":"ac5be210c99486a3d92e199b03416308","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[97,126,158,90],"mod_loader":[99,160],"minecraft_version":[62,37,40,41,73,74,38,78,79,80,81,82,83],"class_list":["post-57299","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-fabric","mod_category-management","mod_category-neoforge","mod_category-optimization","mod_loader-fabric","mod_loader-neoforge","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9","minecraft_version-26-1"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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