Are you getting the frustrating “Internal Exception Java.IO.IOException” error when playing Minecraft? This problem affects a lot of players because it can be ...

[19:37:58] [Netty Server IO #1/WARN] [ne.ne.ne.ne.re.NetworkRegistry/]: Received shieldexp:sync_config on the CLIENT, expected to receive on the SERVER; refusing to decode. [19:37:58] [Netty Server IO ...