WEP cracking Problem

This thread is related to the article at smallnetbuilder.com

http://www.smallnetbuilder.com/content/view/30114/98/

I decided to play around with this one day at home because I had forgotten my password to my router and didn't feel like resetting it. I used an old laptop with a Netgear wireless card in it based on the atheros chipset and used my new laptop as the target which has a broadcom wireless adapter built in.

While I was able to successfully crack the WEP protection, there were a few problems. While the article says that you should not be interfering with the network I found quite the opposite. While stimulating communication, so much interference was generated that it caused my dad's wireless mouse to virtually stop working and it also caused my new laptop (the target) to drop the internet connection more than a few times. It did reconnect right away but it would continually drop and reconnect throughout the process. And, in case you are wondering, the laptops were both in the basement directly below the router. I have never had any problem with my connection and still don't so distance or objects between the laptop and router are not the issue here.

I am wondering why this happened and if there is something I did wrong. I followed the article to the letter from the OS used to each command so I'm not sure why I had this problem