I finished my computer build a few days ago and my computer is about 40-45 feet away from the modem and router. I don't really want to run a super long cable across the house. I currently have an Asus PCE-N53 adapter 300Mbps 2.4GHz/5GHz. The connection is a lot weaker than the connection on my laptop. Is there any reason why that it's weaker? And are there any other wireless adapter cards that you guys would suggest, links would be SUPER helpful!