Troubleshooting
102
WiFi Cable Modem Router Model C3000v2 and C3700v2
Use Ping to Test the LAN Path to Your Gateway
You can use ping to verify that the LAN path to your modem router is set up correctly.
To ping the modem router from a computer running Windows 95 or later:
1.
From the Windows toolbar, click the
Start
button and select
Run
.
2.
In the field that is provided, type
ping
and then the IP address of the modem router, as in
this example:
ping 192.168.0.1
3.
Click
OK
.
You see a message like the following:
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 working correctly, you might be experiencing one of the following
problems:
•
Wrong physical connections.
-
Make sure that the LAN LED is lit. For more information, see
-
Make sure that the corresponding link LEDs are on for your network interface card
and the hub ports (if any) that are connected to your workstation and modem
router.
•
Wrong network configuration.
-
Verify that the Ethernet card driver software and TCP/IP software are both
installed and configured on your computer or workstation.
-
Verify that the IP address for your modem router and your workstation are correct
and that the addresses are on the same subnet.
Use Ping to Test the Path From a Windows Computer to a
Remote Device
After verifying that the LAN path works correctly, test the path from the Windows computer to
a remote device.
To test the path from a Windows computer to a remote device:
1.
From the Windows toolbar, click the
Start
button and select
Run
.
