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Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Troubleshooting 6-5
v1.0, July 2009
If the path is not working correctly, you could have one of the following problems:
• Wrong physical connections.
– Make sure the LAN port LED is on. If the LED is off, see “Using LEDs to
Troubleshoot” on page 6-2.
– Check that the corresponding Link LEDs are on for your network interface card and
for the hub ports (if any) that are connected to your workstation and gateway.
• Wrong network configuration.
– Verify that the Ethernet card driver software and TCP/IP software are both installed
and configured on your PC or workstation.
– Verify that the IP address for your gateway and your workstation are correct and that
the addresses are on the same subnet.
Testing the Path from Your PC to a Remote Device
After verifying that the LAN path works correctly, test the path from your PC to a remote device.
From the Windows run menu, type:
PING -n 10 <IP address>
where <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 in the previous section are displayed. If you do not
receive replies:
• Check that your PC has the IP address of your gateway listed as the default gateway. If the IP
configuration of your PC is assigned by DHCP, this information will not be visible in your
PC’s Network Control Panel. Verify that the IP address of the gateway is listed as the default
gateway. See the link to the online document
“ITCP/IP Networking Basics” in Appendix B.
• Check to see that the network address of your PC (the portion of the IP address specified by
the netmask) is different from the network address of the remote device.
• Check that your Cable Link LED is on.
• If your ISP assigned a host name to your PC, enter that host name as the Account Name in the
Basic Settings screen.