Unfortunately wire is just still much better... no packet loss, almost no interference, higer speeds etc..... Wireless was created for mobility, not speed, and not stability either <img src="/ubbthreads/images/graemlins/disagree.gif" alt="" />
This doesnt mean that you cant bypass the wireless.... Get your father to run the cable, and just disable the wireless card, while you use the wire Lan (its not even a must to disable the wireless, you can use them both together, or the wireless can just idle while you go mad on Wire) (your computer has onboard LAN in any case, so no new hardware required)