The other day, I was at a coffee shop where the Wi-Fi seemed slow. I didn't run actual speed tests, as that would have just added to the network load. Instead, I fired up the excellent WifiInfoView program from Nir Sofer.

Windows, like many operating systems, provides a pathetic amount of Wi-Fi information. Without sufficient technical data, we are left to guess at the root cause of slow Wi-Fi. WifiInfoView is the motherload of techie information about your Wi-Fi environment. I ran the program just to check on the signal strength, but I learned much more.

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