Ever wanted to confirm that a specific AP is properly participating in the air? Or needed to determine which specific AP your mobile device is connecting to?
There’s the “low tech” method... take the device, touch it to the AP, and if the “signal strength” reaches “Excellent” (or dBm is better than -40), then that’s probably your AP, and it is probably functioning just fine.
But, there’s a better way to verify, by comparing BSSIDs. With a mobile device and a wifi analyzer app, you can see which BSSIDs are nearby / connected to you, and compare that with the Controller.