Make your wireless network hidden
Open the Airport Extreme Utility
Connect to a hidden wireless network
Join a wireless network that is hidden in Leopard.
Change the name of your wireless network
Change the wireless password users will use to connect to your network
Enable interference robustness if you're frequently loose network connectivity.
Change the range for your wireless network - extend or shorten
Take a look at your wireless security options - WPA2 Personal/Enterprise, WEP or unsecured.
