How to Quickly Access Wi-Fi Diagnostics Tool in OS X
We recently discussed the powerful new Wi-Fi Scanner tool in OS X but it turns out there’s a much easier way to access the Wi-Fi Diagnostics app than to dig around in /System/Library/CoreServices/ and make a Dock or LaunchPad alias.
Instead, you can quickly launch the excellent wi-fi diagnostics app at any time just by doing the following:
- Hold down the Option key and click on the Wi-Fi menu bar icon
- Pull down to choose “Open Wi-Fi Diagnostics…”
Once you’re in Wi-Fi Diagnostics, you’ll want to hit Command+N to bring up the Network Utilities screen which includes the wi-fi stumbler tool, a signal and bandwidth meter, bonjour scanner, and a variety of other useful network tools like ping and traceroute. This is the same for OS X Mavericks and Mountain Lion.
You can also access the various Wi-Fi performance and diagnostics tools through the View menu. Command+5 will bring up the ever-useful Wi-Fi Performance graphing tool, which can be used to optimize wi-fi network signals and determine signal strength.
The performance graph displays signal strength, network traffic, and interference. The longer you let it run the more meaningful you will find the graph data to be.
The Wi-Fi Diagnostics app is also in OS X Lion, but the Option+Click shortcut does not work to launch it, and the Lion version does not include the wi-fi network scanner/stumbler portion of the app, making the newest version greatly improved.
Thanks to Scott and everyone else who pointed this out