D-Link DIR-280 User Manual page 24

Section 3 - Configuration
Enter a Wireless Network Name in the textbox, which is
also known as the SSID.
Use the rado buttons to select the desred method to assgn
a network key. The two optons are Automatically assign
a network key and Manually assign a network key.
Click the checkbox if you want to use WPA encryption
instead of WEP, if you want to use a stronger encryption
method.
If manually assigning a network key, enter a Network Key
in the textbox and then click Next to contnue.
D-Lnk DIR-280 User Manual 21