Thanks Andrea L of Germantown, MD for allowing me to help you out yesterday evening.
Who would have thought that wanting to use your notebook in your kitchen would gotten so complicated. I was glad to see that once I was able to correct the issues caused before I got there, then I was able to install the proper drivers for your Dell Wireless 1470 mini-PCI card, and was able to tune your router to work more effectively in your environment.
It was interesting to see that all of your neighbors were using either channels 1, or 11, so switching you to channel 5 should result in a system that works a bit better.
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A day in the life of a computer repair tech 