My friend and I like to play minecraft SMP frequently. I created a Lan World in survival on 1.8 and had my friend join. But when we decided to get a nether portal my friend stepped in first and disappeared. Then I tried to go through but couldn't. Meanwhile the nether had loading for my friend for a while until she was disconnected from the server because of a 'timeout'. Thinking my computer was having trouble with the nether portal I closed the world and then reopened it. It was laggy at first and took several closes and reopens before my world had stopped lagging. I then opened the world to Lan and my friend got on. Just when she joined everything except for myself stopped, like the sounds of cows mooing, sound of chickens, and the movement of every entity, stopped. My friend was disconnected from a timeout and we have not been able to use that world together since.