Pinging is a useful tool in dealing with network hardware. Sure, the device may be plugged in and showing the appropriate status lights, but is it actually working? Has it been configured properly for the network? Issues like these can sometimes be difficult to figure out, and pinging can give the user a heads up on these problems and help steer troubleshooting in the right direction. With a DSL Modem this can be helpful in determining exactly what the issue is when Internet connectivity is down.
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Pinging Your DSL Modem
Launch the Command Prompt window. Under Windows XP, click on "Start", navigate your cursor over All Programs, Accessories, and then left click on "Command Prompt". Under Windows Vista or 7, click in the Search box under the Start Menu and type in "cmd". Click on the program entry that appear at the top of the search results box. This will result in a window popping up that consists of white text on a black background.
Find the IP address of your DSL modem. Type in the words "ipconfig" and press the button labeled "Enter" on your keyboard. A bunch of text will come up in the Comamnd Prompt window. Look for the entry labeled as "Default Gateway". This is the "gateway" to the Internet, and will most commonly be your DSL router. To the left of "Default Gateway" will be a row of four numbers (example: 192.168.1.1). This will be the IP address of your DSL modem, and you will need this to ping it. Write down these numbers.
Ping the DSL modem. Type the word "ping" followed by a space and the four numbers that you wrote down from the "Default Gateway" listing. The command should look like this:
Press the "Enter" key on the keyboard. Text should pop up that looks something like this:
Reply from 192.168.1.1 bytes=32 time<1ms TTL=255
You will see four of these entries in a row. This means that your DSL modem is working properly. If you do not see this response, you may need to power down your DSL modem, wait a few minutes, and then power it up. If you still do not receive a response from the ping command, advanced troubleshooting will be necessary, so contact your DSL provider.