Internet not working using WiFi / AirPort

Make sure you know your network passkey as you will need to re-enter it.

  1. Go to your main hard drive (usually Macintosh HD).
  2. Go to Library -> Preferences -> SystemConfiguration
  3. Delete the following files:
    • NetworkInterfaces.plist
    • preferences.plist
  4. Restart the computer. You will need to set up your wireless connection again including the passkey.

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