I had the same problem and searched for 2 days for an answer.
I am running Intel Centrino Wireless n 1030 in Windows 7.
I finally came across an updated driver for the Centrino Wireless n 1030. It was updated 5/2011 which was more current than the 12/2010 version I had on my computer.
When you log onto the site it says that !This driver is not designed for you computer!, but I downloaded and installed it anyways.
IT FIXED EVERYTHING!!!!!!
I hope this helps...