Game d/cing

Not sure if this is the right forum, but here goes.
I installed game onto my laptop (Acer Aspire 5315) and iam running it wirelessly and after around 5 mins of gameplay i get disconnected. The router is not the problem as going thru router menu the firewall is switched off and the game runs fine on my partners laptop. i have allowed game thru windows firewall, and had anti-virus both on and off with the same result. I have run the game previously on said laptop with minimal fuss, and can't get my head around a solution. Could the area around wireless card getting warm have anything to do with it?
Any help appreciated.