If you saved a settings file from a base station or a Time Capsule, or if you were given one by a network administrator, you can import the settings to the base station or the Time Capsule.
You can import the full range of settings, or select timed access control, account settings, or all other settings.
Open AirPort Utility, located in the Utilities folder in the Applications folder on a Mac, and in Start > All Programs > AirPort on a Windows computer.
Select the device you’re setting up, and then click Manual Setup. Enter the password if necessary.
Choose File > Import, locate the settings file, and then click Open.
Select which settings you want to import, and then click OK.
Click Update to make the new settings active.
To save a settings file, choose File > “Save a Copy As.” Select “Include passwords as encrypted data” to require entering the device password when you import the settings later. To view all settings except passwords, you can click Continue without entering a password.