inncorrect header check?

internal Exception: io.netty.handler.codec.decoderException: Java.lang.RuntimeException: VarInt too big
Internal Exception: io.netty.handler.codec.DecoderException:java.util.zip.DataFormatException: incorrect header check

What I expected to happen was...:
I have been playing on a friends server for the past few days and it connects me straight away.

What actually happened was...:
today it will not connect me, sometimes i can connect for about 10 seconds then it disconnects me and brings up several error messages and some say something like 40 is below 256 (sometimes the first number changes)

Steps to Reproduce:
1. Multiplayer
2. Direct connect
3. sends into world for around 10 seconds then disconnects with error message