On a Mac OS X system, at the bottom of the display you see when you hold down the Option key while clicking on the icon for wireless networking, you will see "Open Wireless Diagnostics"; select that option to start the wireless networking diagnostics program provided by Apple. The utility can be used for troubleshooting Wi-Fi network problems and to generate a report of information related to wireless networking on the system, which may assist you with troubleshooting Wi-Fi issues on the system.
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