idk if this will be helpful but after a while I noticed that my friend would lag out on his pc while his wife ( playing on a laptop right next to him ) wouldnt. After a while I decided to check his pc just incase. We uninstalled the game and ran a copy taken from the laptop. He wouldnt suffer any lag or d/c issues till he would close the game and re-open it after a while. He decided to reformat the whole pc ( which I still think was too extreme ) and reinstalled the game. it's been 4 days and he's been able to play withouth any lag or d/c issues whatsoever. Take this with a pinch of salt =p will let you know if the issue comes back.