OK now we know what your default gateway is but for some reason your network isn't picking it up so you can try typing it in manually into your IPv4 properties window.
Open the Network and Sharing Center
by right-clicking on the network icon in the System Tray at the lower right-hand corner of your screen. Once there, click Change Adapter Settings
on the left side of the window.
This will take you to a listing of your installed network adapters. Locate the adapter you’re using, right-click it and select Properties
. In the Connection Properties
window, select the Internet Protocol Version 4
line (shown above) and click the Properties
Once in Properties
, click the Advanced
button, and use the Add
feature under Default gateways to add your router’s IP address.
In your case enter 192.168.0.1, Once entered, click OK
until you’re out of the network configuration windows. Reboot the machine and see if you have a connection. Check your ipconfig /all to make sure that the default gateway you entered is there.
I believe the reason this is happening is because your router is at it's EOL "end of life" and therefore is no longer supported by D-link. Because of this there are no firmware updates which would allow your router to work with Windows 7. So this is only a work around for a firmware problem has I originally suspected. http://www.dlink.com/products/?pid=487