Motorola MG8702 User Manual page 71

About Wireless Security
There are two versions of WPA: WPA and WPA2. When configured as
part of a typical home or small office network, WPA and WPA2 require
a Pre-Shared Key, or PSK. These modes are typically called WPA-PSK
and WPA2-PSK, respectively, though sometimes they're just called
WPA and WPA2. You can enable either WPA-PSK or WPA2-PSK alone,
or you can enable both WPA-PSK and WPA2-PSK together. By default,
your Cable Modem/Router has WPA2-PSK with AES encryption
enabled. You will only need to change the security mode if you have a
device in your wireless network that only supports WEP or WPA-PSK
with TKIP encryption. If you want an unsecured network, disable all
security methods.