求助,自己搭建的服务器,玩家说会经常掉线

ttdms

每当玩家掉线的时候,服务端会显示
18:00:29 [信息] Connection reset
18:00:29 [信息] MsTree lost connection: disconnect.quitting
18:00:29 [严重] java.net.SocketException: Socket closed
18:00:29 [严重] at java.net.SocketOutputStream.socketWrite(Unknown Sourc
e)
18:00:29 [严重] at java.net.SocketOutputStream.write(Unknown Source)
18:00:29 [严重] at java.io.BufferedOutputStream.flushBuffer(Unknown Sour
ce)
18:00:29 [严重] at java.io.BufferedOutputStream.flush(Unknown Source)
18:00:29 [严重] at java.io.DataOutputStream.flush(Unknown Source)
18:00:29 [严重] at net.minecraft.server.NetworkWriterThread.run(SourceFi
le:103)
请问这是什么问题?只有6个人,带宽应该是足够的..3M的光纤..我也查看了下..带宽1M都不到..