This weekend I visited my parents. As these things tend to go, they had a list of things that bothered them about their computers. I like helping them and ended up moving my mother’s blog to a new host, and optimizing their Wi-Fi network. However, that last task was frustrating at first because I didn’t really know what tools to use. I Googled around a bit and found some very expensive tools, but I also uncovered a great and useful one hidden away in Mac OS X itself. In the past it would suffice to look at the AirPort symbol...

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