D-Link DAP-3662 User Manual page 18

Section 3 - Configuration
Authentication: Select Open System to communicate the key across the network.
Select Shared Key to limit communication to only those devices that share the same WEP settings. If multi-SSID is enabled,
this option is not available.
Select WPA-Personal to secure your network using a password and dynamic key changes. No RADIUS server is required.
Select WPA-Enterprise to secure your network with the inclusion of a RADIUS server.
Select 802.1X if your network is using port-based Network Access Control.
For more information about the different types of Authentication offered on the DAP-3662 and the respective settings of each,
please go to the first page of the "Authentication" explanations, which begins on page 23.
D-Link DAP-3662 User Manual 18