Netgear Cg3100d2 Owners Manual

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Customizing Your Network5-5
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 need ed. 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...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
5-6Customizing 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 displa ys 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  Ap
 ply to save your settings.
•...

6-1
v1.0, July 2009
Chapter 6 
T
roubleshooting
This chapter gives information ab out troubleshooting your Wireless Cable Voice Gateway . For the 
common problems listed, go  to the section indicated.
Tip: NETGEAR provides helpful articles, docu mentation, and the latest software 
updates at  http://www.netgear.com/support .
• Have I connected the gateway correctly? Go to  “Basic Functions” on page  6-1 .
• I cannot access the gateway conf iguration with my browse
 r.
Go to  “Connecting to the Gateway’s...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
6-2Troubleshooting
v1.0, July 2009
Using LEDs to Troubleshoot
The following table provides help when using the LEDs for troubleshooting.
Ta b l e 6-1.  Using LEDs to Troubleshoot
LED BehaviorAction
All LEDS are off when the gateway 
is plug
 ged 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 12 VDC powe
 r...

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 co mpu
 ter 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...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
6-4Troubleshooting
v1.0, July 2009
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. 
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...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
Troubleshooting6-5
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...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
6-6Troubleshooting
v1.0, July 2009 

Default Settings and Technical SpecificationsA-1
v1.0, July 2009
Appendix A 
Default Settings and T
echnical Specifications
Factory Default Settings
You can return the gateway to its factory settings.  On the bottom of the gateway, press and hold the 
Restore Factory Settings button 
 for over 7 seconds. The gateway resets, and returns to its 
factory settings.
 Your device will return to the factor y configuration settings shown in the 
following table.
Gateway Login
User login URL http://192.168.1.1...

Wireless Cable Voice Gateway CG3000/CG3100 User Manual
A-2 Default Settings and Technical Specifications
v1.0, July 2009
Technical Specifications
The table below describes the technical specifications for the gateway.
Wireless
Wireless communicationEnabled
SSID nameWireless
SecurityDisabled
Broadcast SSIDEnabled
Transmission speedAutoa
Country/regionUnited States (varies by region)
RF channel6
Operating modeg and b
Data rateBest
Output powerFull
Access point Enabled
Authentication type Open System...