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Page 66 / 80 Scroll up to view Page 61 - 65
Wireless Cable Voice Gateway Model CVG824G Reference Manual
5-2
Troubleshooting
1.0, November 2006
If any of these conditions does not occur, see the table below:
Troubleshooting the Web Configuration Interface
If you are unable to access the gateway’s Web Configuration interface from a PC on your local
network, check the following:
•
Check the Ethernet connection between the PC and the gateway as described in the previous
section.
Table 5-1. Basic Troubleshooting with LEDs
Problem
Action
Power LED is off.
If the Power and other LEDs are off when your gateway is turned on:
•
Make sure that the power cord is properly connected to your gateway
and that the power supply adapter is properly connected to a
functioning power outlet.
•
Check that you are using the 12VDC power adapter supplied by
NETGEAR for this product.
If the error persists, you have a hardware problem and should contact
technical support.
All LEDs stay on when the
gateway is turned on.
•
Clear the gateway’s configuration to factory defaults. This will set the
gateway’s IP address to 192.168.0.1. This procedure is explained in
“Restoring Factory Default Configuration Settings” on page 4-8
.
•
If the error persists, you might have a hardware problem and should
contact technical support.
LAN LEDs are off, but ports
are connected.
Check the following:
•
Make sure that the Ethernet cable connections are secure at the
gateway and at the hub or PC.
•
Make sure that power is turned on to the connected computer.
•
Be sure you are using the correct cable:
When connecting the gateway use the cable that was supplied.
Page 67 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
Troubleshooting
5-3
1.0, November 2006
•
Make sure that your PC’s IP address is on the same subnet as the gateway. If you are using the
recommended addressing scheme, your PC’s address should be in the range of 192.168.0.10 to
192.168.0.254. Refer to
“Preparing a Computer for Network Access:” in Appendix B
for more
information about IP address configuration.
•
If your gateway’s IP address has been changed and you don’t know the current IP address,
clear the gateway’s configuration to factory defaults. This will set the gateway’s IP address to
192.168.0.1. This procedure is explained in
“Restoring Factory Default Configuration
Settings” on page 4-8
.
•
Make sure that your browser has Java, JavaScript, or ActiveX enabled. If you are using
Internet Explorer, click Refresh to be sure that the Java applet is loaded.
•
Try quitting the browser and launching it again.
•
Make sure that you are using the correct login information. The factory default login name is
admin
and the password is
password
. Make sure that CAPS LOCK is off when entering this
information.
If the gateway does not save changes you have made, check the following:
•
When entering configuration settings, be sure to click
Apply
before moving to another menu
or page, or your changes are lost.
•
Click the Refresh or Reload button in the Web browser. The changes may have occurred, but
the Web browser may be caching the old configuration.
Troubleshooting the ISP Connection
If your gateway is unable to access the Internet and your Cable Link LED is on, you may need to
register the Cable MAC Address and/or Device MAC Address of you gateway with your cable
service provider. This is described in
“Installing the Voice Gateway” on page 1-4
.
Additionally, your PC may not have the gateway configured as its TCP/IP gateway. If your PC
obtains its information from the gateway by DHCP, reboot the PC and verify the gateway address
as described in
“Preparing a Computer for Network Access:” in Appendix B
.
Note:
If your PC’s IP address is shown as 169.254.x.x:
Recent versions of Windows and Mac OS generate and assign an IP address if
the computer cannot reach a DHCP server. These auto-generated addresses are
in the range of 169.254.x.x. If your IP address is in this range, check the
connection from the PC to the gateway and reboot your PC.
Page 68 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
5-4
Troubleshooting
1.0, November 2006
Troubleshooting a TCP/IP Network Using a Ping Utility
Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet
to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP
network is made easier by using the ping utility in your PC or workstation.
Testing the LAN Path to Your Gateway
You can ping the gateway from your PC to verify that the LAN path to your gateway is set up
correctly.
To ping the gateway from a PC running Windows 95 or later:
1.
From the Windows toolbar, click on the Start button and select Run.
2.
In the field provided, type Ping followed by the IP address of the gateway, as in this example:
3.
Click
OK
.
•
You should see a message like this one:
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, you could have one of the following problems:
•
Wrong physical connections
–
Make sure that the LAN port LED is on. If the LED is off, follow the instructions in
“LAN LEDs are off, but ports are connected.” on page 5-2
”.
–
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.
Page 69 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
Troubleshooting
5-5
1.0, November 2006
–
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 working 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 as described in
“Preparing a Computer for Network Access:” 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 page.
•
Your ISP could be rejecting the Device MAC Address of your gateway because it does not
match the MAC Address of the PC you previously used to connect to a cable modem. In this
case you will need to clone your PCs MAC Address. Refer to
“Installing the Voice Gateway”
on page 1-4
.
Page 70 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
5-6
Troubleshooting
1.0, November 2006

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