您的主机中的软件中止了一个已建立的连接 netty

java.io.IOException: 您的主机中的软件中止了一个已建立的连接。
	at sun.nio.ch.SocketDispatcher.read0(Native Method)
	at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
	at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
	at sun.nio.ch.IOUtil.read(IOUtil.java:192)
	at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
	at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:311)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:853)
	at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:240)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:115)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:514)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:471)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:385)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:351)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at io.netty.util.internal.chmv8.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1412)
	at io.netty.util.internal.chmv8.ForkJoinTask.doExec(ForkJoinTask.java:280)
	at io.netty.util.internal.chmv8.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:877)
	at io.netty.util.internal.chmv8.ForkJoinPool.scan(ForkJoinPool.java:1706)
	at io.netty.util.internal.chmv8.ForkJoinPool.runWorker(ForkJoinPool.java:1661)
	at io.netty.util.internal.chmv8.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:126)

netty服务器运行中报错，客户端2g连接，信号质量比较差，这个错误是怎么产生的呢？？