D-Link DWR-712 User Manual page 76

Section 4 - Connecting to a Wireless Network
3. The Wireless Network Connection box will appear. Enter the same WEP key that
is on your router 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 router.
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