How-To

Sniff and troubleshoot wireless with a Mac Book

  1. Open Wireless Diagnostics located in /System/Library/CoreServices/Applications/
  2. Press ⌘Command+6 or choose Window > Packet Sniffer
  3. Choose a channel and frequency
  4. Click Start

Once you click Stop, a .wcap  file will be added to your Desktop.  You will need a program like Wireshark to read the file.  Wireshark can also capture packets, but it is interesting that Apple has added this function to Wireless Diagnostics.

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