D-Link DI-804 User Manual page 61

Renew buttons to receive the correct settings. If you manually set
your network settings, make sure that the IP Address of your
Broadband Router is set in the Gateway portion of the TCP/IP
settings in your network settings.
§ Click on "More Info" to display additional IP information.
The important settings to watch for in this screen are in the Host
Information box. Make sure that the DNS Servers box has the
correct DNS information.
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