Having issues connecting to wifi

Hello!

I have a Asus A53s laptop, windows 7, using a intel centrinto wireless-N 100 adapter that came with the laptop. The problem is i am trying to connect to the wireless internet at my girlfriends house but it is not dependable. Sometimes it works, sometimes it does not work. I have tried deleting the internet profile and resetting it as a wpa2-personal and am using the correct password. Nobody else in their house has issues with their wifi when i am not able to get it. Thoughts?

Many Thanks, Michael