MacBook Wireless Diagnostics

Wi-Fi Analyzer on an Android phone is the best free tool for analyzing an diagnosing problems on Wi-Fi.

However, I use an iPhone and a MacBook. OSC comes with a powerful built-in Wi-Fi analyzer. This page shows how to access it.

OSX on the MacBook, has a utility called Wireless Diagnostics.

• Open a Finder window and Scan "This Mac" for: Wireless Diagnostics

• Open Wireless Diagnostics, the one with Wrench and Screwdriver app at the bottom of the screenshot below

• Optional: Once open, click on options and keep this app in Dock

• See the image below, ignore the pop-up window and the Continue button

• Click on Window menu bae item and select Scan (or use shortcut option-command-4)

• It will scan available SSIDs and display RSSI, Noise, Channel, Security and so on. See the sample below