To ping the modem from a Windows computer:
1.
From the Windows taskbar, click the Start button and select Run.
2.
In the field provided, enter ping followed by the IP address of the modem, as in this example:
ping 192.168.5.1
3.
Click the OK button.
A message such as the following one displays:
Pinging <IP address> with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
If the path is not functioning correctly, one of the following problems might be occurring:
•
Wrong physical connections
Make sure that the LAN LED is lit.
If your modem and computer are connected through a separate router or Ethernet switch, make sure
that the link LEDs are lit for the router or switch ports that are connected to your computer and modem.
•
Wrong network configuration
Verify that the Ethernet card driver software and TCP/IP software are both installed and configured on
your computer.
Verify that the IP address for your modem and your computer are correct and that the addresses are
on the same subnet.
Test the Path From Your Computer to a Remote Device
After you verify that the LAN path works correctly, test the path from your computer to a remote device.
To test the path from your computer to a remote device:
1.
From the Windows toolbar, click the Start button and select Run.
2.
In the field provided, enter ping -n 10 IP address.
IP address is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies as described in
Test the LAN Path to Your Modem
on page 101
display. If you do not receive replies, do the following:
•
Check to see that the IP address of your modem is listed as the default router in your computer. If the
IP configuration of your computer is assigned by DHCP, this information is not visible in your computer’s
Network Control Panel. Verify that the IP address of the modem is listed as the default router.
•
Check to see that the network address of your computer (the portion of the IP address specified by the
netmask) is different from the network address of the remote device.
Troubleshooting
102
Broadband High-Speed DSL Modem Model DM200
