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AirPort: How to enter a hexadecimal 64-character pre-shared key for WPA

Networks using Wi-Fi Protected Access (WPA) normally require a plain-text password or passphrase. Some networks may require you to enter a hexadecimal 64-character key instead.

To enter the key, hold down the Option key then choose your network from the AirPort menu. You should now be able to enter the pre-shared WPA key.

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