I keep receiving the error below when trying to play on my brother's minecraft server. There seems to be absolutely no fix for this and it is very frustrating as this is about the only game I can play with them. My GF was playing in our server as well on a laptop right next to me and she did not get disconnected once where as I get disconnected every time I join the server. The game is unplayable. Can I please get help resolving this issue so that I can actually enjoy minecraft.

Thank you.