If you are connecting the wireless enabled device to a network, it is necessary to secure it with the following procedure of how to make your DLink router private. You need to change the admin credentials periodically. Make a note that the router broadcast signals in all directions. Check if the firewall settings of the router are enabled (Disable Firewall In DLink Router). If you are unable to connect the router to the network, the settings may block the connection. Try to hide the network name or SSID from the surrounding networks. Go through the steps mentioned below for accessing the router privately.