How to Reset an AirPort Card (4 Steps)

Click the 'System Preferences' tab in the lower left corner of the dock.
Select 'View,' then click 'Network.' Once the new selections appear, click 'Show,' then 'Network Port Configurations.'
Deselect the 'AirPort' option, then choose 'Apply Now.'
Select the 'AirPort' option and click 'Apply Now,' then exit out of 'System Preferences' to complete the reset.
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