Wifi Connectivity Issues

Hey there, first I wanna say thank you to you guys for helping me out with my hard drive NTFS settings.

First of all, I'm running a Hackintosh system with MacOS 10.8.4. A friend of mine built this for me and when we tested the wifi at his place, it was running great with a download speed of 1.4MB\s. I take it home and connect to my wifi and i'm barely getting .10KB\s

Any ideas on how to fix this issue???