If the default password has been changed then -
To reset the D-Link back to the default settings -
Press and hold the RESET button at the back of the router with the power ONuntil the LEDs flash at the time the release the RESET button.
Connect a LAN cable from the D-Link to your computer's LAN port, open a browserand enter the D-Link's configuration URL. OR open the browser on your laptopand enter the D-Link's configuration URL..
The default login = admin
The default PW = blank (just press Enter)
You can now configure the wireless settings.
To secure your wireless network from unauthorized access,please click on this link and follow my instructions :-