D-Link DSL-6740U User Manual page 40

Section 3 - Configuration
Manual Setup AP – WPA/WPA2-PSK
Wi-Fi Protected Access - Pre-Shared Key is suitable for home and
SOHO environments, the configurations are similar to WEP. WPA-PSK
key length is between 8 to 63 ASCII codes.
Click on the Save/Apply button to apply settings.
D-Link DSL-6740U User Manual 40