help ping time out problem every time and it freeze my computer and makes it restart help

Can you explain in steps exactly what your computer does in the order it does it.

ok first it start slowing down then it just stops and then my computer freeze i can't move mouse or anything and i have to restart it

Ah, so your computer's locking up completely when your playing.

Is this when your online, or playing single player?

only when i'm online