D-Link DIR-605L User Manual page 60

Section 5 - 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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