A D-Link router is accessed by using http://192.168.0.1 and not http://192.168.1.1 or http://www.192.168.1.1 as you mentioned. Since your wireless isn't currently working, you must make the changes below using a computer which is connected to the router by a network cable.
Again:
Go to http://192.168.0.1
Enter admin for the user name, leave the password blank
If you are unable to login to the router through a wired connection this way, then you can reset the router to its factory settings:
To reset your router, use the following steps:
1. Press the router's reset button for 10 seconds. You can use a small object, such as a paper clip to hold down the button. Do not power off the unit while the router is being reset.
2. The unit should now reboot, and once the WLAN light stops blinking the router should be reset.
3. Open up your Web browser and enter 192.168.0.1 in the address bar.
4. For the login, enter admin as the ID and leave the password blank.
Securing Your Wireless Connection:
When you secure the wireless connection you use a numeric "key" and not a "password".
To enable security, once you access the router from a computer connected to the router via a network cable:
1. Click the button labeled "Wireless"
2. make Sure "Wireless" is "Enabled"
3. Set "Security" to "WEP"
4. Replace "Key 1" with a string of 10 numbers of your own choosing
5. Optional: Set alternate keys if you wish.
6. Click the "Apply" button
If you want a little extra security, set "SSID Broadcast" to "Disable". This way people in the area with wireless cards will not see your network on their list of available networks. You won't be able to see it either, but when connecting to a wireless network on your laptop you will find an option to "Connect to a hidden network". The "Wireless" screen in the router will show you what your SSID is, and it will allow you to change it. Just be aware that the SSID is case sensitive.
Connecting to a hidden wireless network
After you checked your wireless network settings as shown above, you can configure the laptop to automatically connect to a specific wireless network that uses a hidden SSID. To do this, follow these steps on the laptop with the network cable removed:
1. Click "Start", click "Run", type "ncpa.cpl" without the quotes, and then click "OK".
2. In the "Network Connections" window, right-click "Wireless Network Connection", and then click "Properties".
3. In the "Wireless Network Connection Properties" dialog box, click the "Wireless Networks" tab.
4. Under "Preferred networks", click the SSID profile name for the wireless network that uses a hidden SSID, and then click "Properties".
5. Click the "Connection" tab, click to select "Connect when this network is in range", and then click "OK".
6. Click "OK" to close the "Wireless Network Connection Properties" dialog box.
7. Close the "Network Connections" window.
If all elsefails, install Cisco's "Network Magic" program on your laptop. You can download it at www.purenetworks.com. The Pro features of the program only work for 30 days, but the Basic features of the free version are all you need to solve this problem. Then have NetWork Magic manage your wireless connection on the laptop.
You might also consider asking Verizon if they can provide you with a new wireless modem for your DSL service. That way you can get customer service for your wireless connection.