Wireless Diagnostics
Apple (via Dan Frakes):
Wireless Diagnostics can help you resolve wireless connectivity issues by analyzing the Wi-Fi network your Mac is connected to and providing solutions. Wireless Diagnostics is included with OS X Mountain Lion v10.8.4 and later.
If you can connect to your Wi-Fi router, but are having issues with webpages loading, sending or receiving email, music or video streaming, or downloading, use Wireless Diagnostics. After Wireless Diagnostics has completed an analysis of your Wi-Fi network, it will list any issues it finds and offer some solutions.
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[...] Link. I so have needed this! Been years since a point update brought a new utility. Best thing Apple has done in months. This entry was posted in share and tagged pinboard by jgordon. Bookmark the permalink. Proudly powered by WordPress [...]
This is actually a massive feature/usability downgrade from the version that came with 10.8.3 and earlier — the equivalent of what happened with AirPort Utility 6. Previously, Wireless Diagnostics included neat stuff like a graphical Bonjour browser, better versions of most of the stuff in Network Utility, and so forth. All gone now, replaced by more cumbersome/ugly versions of what came before, or nothing.
@Nicholas Wow, I don’t even remember seeing this utility before, and various other sites have reported it as a new app.
It was actually called Wi-Fi Diagnostics in 10.8.3, but clearly is a version of the same app. I tried copying it from 10.8.3 to 10.8.4 and it still runs, FWIW. I really can't understand the logic that causes this kind of wholesale app destruction to happen.
Wi-Fi Diagnostics 4.0 (400.60) in OS X 10.10 Yosemite Beta 3 is much improved. Bonjour Browser is still missing, but some of the old options are back again!
