D-Link DHP-W306AV User Manual page 61

Section 5 - Connecting to a Wireless Network
3. The Wireless Network Connection box will appear. Enter the
same WEP key that is on your access point and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the WEP settings are correct.
The WEP key must be exactly the same as on the wireless access
point.
D-Link DHP-W306AV User Manual 61