Wireless Cable Voice Gateway CG3000/CG3100 User Manual

Customizing Your Network

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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.

Wireless Cable Voice Gateway CG3000/CG3100 User Manual

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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.

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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.

Wireless Cable Voice Gateway CG3000/CG3100 User Manual

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Troubleshooting

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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.

Wireless Cable Voice Gateway CG3000/CG3100 User Manual

Troubleshooting

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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.