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Page 51 / 66 Scroll up to view Page 46 - 50
Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Customizing Your Network
5-5
v1.0, July 2009
Configuring Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access
the network and connect to other devices as needed. UPnP devices can automatically discover the
services from other registered UPnP devices on the network.
To configure UPnP:
1.
In the main menu, under Advanced, select UPnP. The UPnP screen displays.
Figure 5-3
2.
Select the
Turn UPnP On
check box. The default setting is disabled, which prevents the
gateway from allowing any device to automatically control of its the resources, such as port
forwarding.
3.
Enter the following information:
•
Advertisement Period
. Enter how often the gateway broadcasts its UPnP information.
The default is 30 minutes.Shorter durations will ensure that control points have current
device status at the expense of additional network traffic. Longer durations may
compromise the freshness of the device status but can significantly reduce network traffic.
•
Advertisement Time to Live
. Enter the time to live for the advertisement, which is
measured in hops (steps) for each UPnP packet that is sent. A hop is the number of steps
that are allowed to propagate for each UPnP advertisement before it disappears. The
number of hops can range from 1 to 255. The default value for the advertisement time to
live is 4 hops, which should be fine for most home networks. If you notice that some
devices are not being updated or reached correctly, you might need to increase this value
slightly.
Page 52 / 66
Wireless Cable Voice Gateway CG3000/CG3100 User Manual
5-6
Customizing Your Network
v1.0, July 2009
The UPnP Portmap Table displays the IP address of each UPnP device that is currently
accessing the gateway and which internal and external ports of the gateway were opened by
that device. The UPnP Portmap Table also displays the protocol for the port that was opened
and if that port is still active for each IP address.
4.
Perform one of the following actions:
•
Click
Apply
to save your settings.
•
Click
Cancel
to disregard any unsaved changes.
•
Click
Refresh
to update the UPnP Portmap Table and to show the active ports that are
currently opened by UPnP devices.
NAT
You can enable or disable network address translation (NAT) protocol. In the main menu, under
Advanced, select NAT The following screen displays.
Figure 5-4
Normally the
Turn NAT On
check box should be selected, which is the default setting.
Page 53 / 66
6-1
v1.0, July 2009
Chapter 6
Troubleshooting
This chapter gives information about troubleshooting your Wireless Cable Voice Gateway . For the
common problems listed, go to the section indicated.
Tip:
NETGEAR provides helpful articles, documentation, and the latest software
updates at
.
•
Have I connected the gateway correctly?
Go to
“Basic Functions” on page 6-1
.
•
I cannot access the gateway configuration with my browser.
Go to
“Connecting to the Gateway’s Main Menu” on page 6-3
.
•
I have configured the gateway but I cannot access the Internet.
Go to
“Troubleshooting the ISP Connection” on page 6-4
.
•
I cannot remember the gateway’s configuration password or I want to clear the configuration
and start over again.
Go to
“Factory Default Settings” in Appendix A
.
Basic Functions
After you have turned on power to the gateway, you should do the following:
1.
When power is first applied, verify that the Power LED is on.
2.
Verify that the numbered Ethernet LEDs come on momentarily.
3.
After a few seconds, verify that the Local port Link LEDs are lit for any local ports that are
connected.
If any of these conditions does not occur, refer to the appropriate following section.
Page 54 / 66
Wireless Cable Voice Gateway CG3000/CG3100 User Manual
6-2
Troubleshooting
v1.0, July 2009
Using LEDs to Troubleshoot
The following table provides help when using the LEDs for troubleshooting.
Table 6-1.
Using LEDs to Troubleshoot
LED Behavior
Action
All LEDS are off when the gateway
is plugged in.
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
•
Clear the gateway’s configuration to factory defaults. This will set the
gateway’s IP address to 192.168.0.1. See
“Factory Default Settings”
in Appendix A
.
•
If the error persists, you might have a hardware problem and should
contact technical support.
LAN LED is off for a port with an
Ethernet connection.
•
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 hub or PC.
•
Be sure you are using the correct cable.
Internet LED is off and the
gateway is connected to the cable
television cable.
•
Make sure that the coaxial cable connections are secure at the
gateway and at the wall jack.
•
Make sure that your cable internet service has been provisioned by
your cable service provider. Your provider should verify that the signal
quality is good enough for cable modem service.
•
Remove any excessive splitters you may have on your cable line. It
may be necessary to run a “home run” back to the point where the
cable enters your home.
Page 55 / 66
Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Troubleshooting
6-3
v1.0, July 2009
Connecting to the Gateway’s Main Menu
If you are unable to access the gateway’s main menu from a computer on your local network,
check the following:
•
Check the Ethernet connection between the computer and the gateway as described in the
previous section.
•
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 the link to the online document
“ITCP/IP Networking Basics” in
Appendix B
for help configuring your computer.
Note:
If your PC’s IP address is shown as 169.254.x.x:
Recent versions of Windows and MacOS will 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.
•
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
“Enabling Remote Management” on page 5-13
.
•
Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet
Explorer, click Refresh to make sure that the Java applet is loaded.
•
Try quitting the browser and launching it again.
•
Make sure you are using the correct login information. The gateway has two user names both
lower-case (
Caps Lock
should be off):
–
The superuser login name is
mso
with the default password of
changeme
.
–
The other login name is
admin
with the default password of
password
.
If the gateway does not save changes you have made, check the following:
•
When entering configuration settings, be sure to click the
Apply
button before moving to
another screen, 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.

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