NETGEAR N450 User manual

350 East Plumeria Drive
San Jose, CA 95134
USA
January 2014
202-11338-01
N450 WiFi Cable Modem Router
Model N450/CG3000Dv2
User Manual

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Support
Thank you for selecting NETGEAR products.
After installing your device, locate the serial number on the label of your product and use it to register your product at
https://my.netgear.com. You must register your product before you can use NETGEAR telephone support. NETGEAR
recommends registering your product through the NETGEAR website. For product updates and web support, visit
http://support.netgear.com.
Phone (US & Canada only): 1-888-NETGEAR.
Phone (Other Countries): Check the list of phone numbers at http://support.netgear.com/general/contact/default.aspx.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
Trademarks
NETGEAR, the NETGEAR logo, and Connect with Innovation are trademarks and/or registered trademarks of NETGEAR, Inc.
and/or its subsidiaries in the United States and/or other countries. Information is subject to change without notice.
© NETGEAR, Inc. All rights reserved.

Table of Contents |3
Contents
Chapter 1 Connecting to the Internet
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Position Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cable Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Connect Computer to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Wired Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
WiFi Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Log In to Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
View Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Notify Your Internet Service Provider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Chapter 2 Configuring Your Wireless Network
Configure Wireless Settings Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Use WPS Wireless Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Set Up Wi-Fi Multimedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Change the Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Chapter 3 Filtering Content
Limit Internet Site Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Allow Unrestricted Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Enable or Disable Modem Router Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Chapter 4 Maintaining Your Network
View the Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Back Up and Restore Your Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
View the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Run the Diagnostic Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Traceroute Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Chapter 5 Advanced Settings
Advanced Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
MAC Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
IP Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Port Forwarding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
DMZ Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
LAN IP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Reserve an IP Address for DHCP Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
LAN Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Configure Universal Plug and Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Set Networking Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Enable Network Address Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Access a USB Device on the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Chapter 6 Troubleshooting
Basic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Connect to the Modem Router’s Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Troubleshoot the ISP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Troubleshoot a TCP/IP Network Using a Ping Utility . . . . . . . . . . . . . . . . . . . . . . 82
Test the LAN Path to Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Test the Path from Your Computer to a Remote Device . . . . . . . . . . . . . . . . . 83
Appendix A Supplemental Information
Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

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1. Connecting to the Internet
This chapter covers the following sections:
•Unpack Your Modem Router
•Hardware Features
•Label
•Position Your Modem Router
•Cable Your Modem Router
•Connect Computer to the Modem Router
•Log In to Your Modem Router
•View Basic Settings
•Notify Your Internet Service Provider
For more information about the topics covered in this manual, visit the support website at
http://support.netgear.com.
Firmware updates with new features and bug fixes are made available from time to time on
downloadcenter.netgear.com. Some products can regularly check the site and download new
firmware, or you can check for and download new firmware manually. If the features or behavior
of your product do not match what is described in this guide, you might need to update your
firmware.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Unpack Your Modem Router
Open the box and remove the modem router, ethernet cable, power adapter, and installation
guide,
Figure 1. Package contents
You box contains the following items:
•N450/CG3000Dv2 WiFi Cable Modem Router
•Ethernet cable
•AC power adapter (varies by region)
•Installation guide
Hardware Features
Before you cable your router, take a moment to become familiar with the front and back
panels. Pay particular attention to the LEDs on the front panel.
Modem router
Ethernet cable
Power adapter

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Front Panel
The router front panel has the following status LEDs and buttons:
Figure 2. Modem router front view
You can use the LEDs to verify status and connections. The following table lists and describes
each LED and button on the front panel of the modem router.
Table 1. LEDs and buttons
LED Description
Power
• Solid green. The modem router has power.
• Blinking green. The modem router is powering on.
• Blinking red. The modem router is performing a self-test or the thermal cutoff circuit has
been triggered.
• Off. The modem router is not receiving power.
Downstream
• Solid blue. More than one downstream channel is locked.
• Solid green. One downstream channel is locked.
• Blinking green. The modem router is scanning for a downstream channel.
• Off. No downstream channel is locked.
WPS LED
Wireless LED
USB port
Power LED
Downstream LED
Upstream LED
Internet LED
LAN LEDs

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Upstream
• Solid blue. More than one upstream channel is locked.
• Solid green. One upstream channel is locked.
• Blinking green. The unit is ranging on the upstream.
• Off. No downstream channel is locked.
Internet
• Solid green. The modem router is connected to the Internet.
• Slow blink. The modem router is receiving DHCP information.
• Fast blink. The modem router is downloading the configuration file.
• Off. The modem router is not connected to the Internet.
LAN
Green indicates 1,000/100 Mbps. Amber indicates 10 Mbps.
• Solid. A power-on device is connected to the LAN port.
• Blinking. The LAN port is transmitting or receiving data.
• Off. No device is connected to a LAN port.
Wireless
On/Off
Pressing this button for three seconds turns on the wireless radio.
• Solid green. The wireless radio is operating.
• Blinking green. Data is being transmitted or received over the WiFi link.
• Off. The wireless radio is off.
WPS
Pressing this button opens a two-minute window for the modem router to connect with other
WPS-enabled devices. For more information, about using the WPS method to implement
security, see the Use WPS Wireless Setup on page 20.
Table 1. LEDs and buttons
LED Description

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Back Panel
The back panel has the following ports, button, and connector:
Figure 3. Modem router rear panel
The rear panel includes the following connectors and button, viewed from top to bottom:
•Four Gigabit LAN ports. To connect local computers, use these ports.
•USB port. To connect a USB hard drive, flash drive, or printer, use this port.
•Reset.To set the modem router to the original factory settings, press and hold the Reset
button for over seven seconds. See Factory Default Settings on page 86.
•Coaxial cable connector. Attach a coaxial cable to the cable service provider’s
connection.
•Power. Power adapter input.
LAN ports
Coaxial cable connector
USB port
Power adapter input
Reset button

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Label
The label on the modem router shows the router’s WiFi network name (SSID), password,
serial number, and MAC address.
Figure 4. Label
For information about the Restore Factory Settings button and the factory setting values, see
Factory Default Settings on page 86.
Position Your Modem Router
The modem router lets you access your network anywhere within the operating range of your
wireless network. However, the operating distance or range of your wireless connection can
vary significantly depending on the physical placement of your modem router. For example,
the thickness and number of walls the wireless signal passes through can limit the range.
Additionally, other wireless access points in and around your home might affect your modem
router’s signal. Wireless access points are modem routers, repeaters, WiFi range extenders,
or any other device that emits a wireless signal for network access.
To position your modem router:
1. Place your modem router near the center of the area where your computers and other
devices operate, and within line of sight to your wireless devices.
2. Make sure that the modem router is within reach of an AC power outlet and near Ethernet
cables for wired computers.
3. Place the modem router in an elevated location, minimizing the number walls and ceilings
between the modem router and your other devices.
4. Place the modem router away from electrical devices such as these:
•Ceiling fans
MAC address
WiFi network name (SSID) Serial number
Password (key)

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
•Home security systems
•Microwaves
•Computers
•Base of a cordless phone
•2.4 GHz cordless phone
5. Place the modem router away from large metal surfaces, large glass surfaces, and insulated
walls such as these:
•Solid metal door
•Aluminum studs
•Fish tanks
•Mirrors
•Brick
•Concrete
Cable Your Modem Router
The following figure shows how to cable your modem router:
Figure 5. Cable your modem router
To cable your modem router:
6. Connect the cable port on the modem router to your cable line splitter or outlet.
Use the coaxial cable from your cable company.
Modem router
Computer
Outlet
Power adapter

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Note: If Charter is your cable Internet service provider, Charter recommends
connecting your modem router directly to an outlet. If you must use a
splitter, use a splitter that is rated at 3.5 dBmv.
7. Connect the power adapter to the modem router.
8. Plug the other end of the power adapter into an electrical outlet.
9. Wait about 50 seconds for the modem router to start.
The Internet LED blinks, then turns solid green, indicating that a link was established to
the cable network.
For information about LEDs, see Front Panel on page 7.
10. Connect a computer or WiFi device to the modem router.
For more information, see Connect Computer to the Modem Router on page 12.
Connect Computer to the Modem Router
You can connect your computer or mobile device (such as a smartphone or gaming device)
to the modem router’s WiFi network through a wired or WiFi connection.
Wired Connection
You can connect your computer to the modem router using an Ethernet cable and join the
modem router’s local area network (LAN).
To connect your computer to the modem router with an Ethernet cable:
1. Make sure that the modem router has power (its Power LED is lit).
2. Connect an Ethernet cable to a LAN port on your computer.
3. Connect the other end of the Ethernet cable to one of the numbered LAN ports.
Your computer connects to the local area network (LAN). A message might display on
your computer screen to notify you that an Ethernet cable is connected.
WiFi Connection
You can connect to the modem router’s WiFi network with Wi-Fi Protected Setup (WPS) or
you can find and select the WiFi network.
To use WPS to connect to the WiFi network:
1. Make sure that the modem router has power (its Power LED is lit).
2. Check the WPS instructions for your computer or mobile device.
3. Press the WPS button on the modem router.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
4. Within two minutes, on your computer or mobile device, press its WPS button or follow its
instructions for WPS connections.
Your computer or mobile device connects to the WiFi network.
To find and select the WiFi network:
1. Make sure that the modem router has power (its Power LED is lit).
2. On your computer or mobile device, find and select the WiFi network.
The WiFi network name is on the modem router’s label.
3. Join the WiFi network and enter the WiFi password.
The password is on the modem router’s label.
Your computer or mobile device connects to the WiFi network.
Log In to Your Modem Router
Log in to the modem router to view or change its settings.
Note: To connect to the modem router, use a computer configured for
DHCP (most computers are). For help with configuring DHCP, see the
instructions that came with your computer.
If you do not click the Logout button, when you have logged in, the modem router waits for
activity for five minutes before it automatically logs you out.
To log in to the modem router:
1. Type http://192.168.0.1 in the address field of your web browser.
A login screen displays.
2. Enter the modem router user name and password.
The default user name is admin. The default password is password. The user name and
password are case-sensitive.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
The modem router main menu displays.
View Basic Settings
You can view or change the Internet settings for the modem router.
To view or configure basic settings:
1. Type http://192.168.0.1 in the address field of your web browser.
A login screen displays.
2. Enter the modem router user name and password.
The default user name is admin. The default password is password. The user name and
password are case-sensitive.
The modem router main menu displays.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
3. From the main menu, select Basic Settings.
The Basic Settings screen displays:
4. If your Internet service provider requires a domain name, enter the domain name in the
Domain Name field.
5. Enter the device name in the Device Name field.
This name is a user-friendly name representing the modem router in the network
computers running Windows Vista and the Network Explorer on all other Windows
computers.
6. Click the Apply button.
Your changes are saved.
Notify Your Internet Service Provider
You must contact your Internet service provider (ISP) and tell them that you are using the
modem router.
1. Contact your cable ISP and inform them that you are installing a new modem router that
you bought from a retail store.
Provide your cable ISP with the modem router’s model number, which is CG3000Dv2.
Note: The modem router is certified by all major cable ISPs.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
You can also visit your cable ISP’s website and follow the onscreen instructions to set up
your Internet service.
Note: The contact information listed might change. You can also find the
contact number in your monthly Internet service billing statement.
2. When asked, provide the modem router’s serial number and MAC address located on the
product label on the modem router.
For more information, see Label on page 10.
3. Wait for your cable ISP to confirm that your modem router is active.
4. If you do not have an Internet connection with the modem router, ask your cable ISP to look
for your modem router online, and do one of the following depending on what your cable ISP
tells you about your modem router:
•If the modem routeris not visible, your cable ISP can give you instructions to verify
why the modem routerdoes not connect with your high-speed Internet service.
•If your cable Internet service provider can confirm that the modem router is visible,
reboot the computer that is connected to the modem router. Try checking your online
status again.
Cable ISP Contact Information
Cablevision www.cablevision.com
www.optimum.com/contactus.jsp
Charter 1-888-438-2427
https://install.charter.com/
Comcast 1-800-COMCAST (1-800-266-2278)
https://www.comcast.com/activate/
Cox 1-877-891-2899
ww2.cox.com
Optimum http://play.optimum.net
https://www.optimum.net/support/phone-list/
Time Warner Cable 1-800-892-2253
http://www.timewarnercable.com/

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2. Configuring Your Wireless
Network
This chapter covers the following sections:
•Set Up Your Wireless Network
•Set Up Wi-Fi Multimedia
•Change the Password
Note: Before changing wireless settings, connect the modem router and set
up its Internet connection as described in the N450 WiFi Cable
Modem Router N450/CG3000Dv2 Installation Guide.

Configuring Your Wireless Network
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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Set Up Your Wireless Network
To set up the wireless network, you can enter the wireless settings manually, or you can use
Wi-Fi Protected Setup (WPS). To wirelessly connect to the modem router, a computer or
wireless device must be configured with the same wireless settings as the modem router.
Configure Wireless Settings Manually
You can manually configure the wireless settings and security in the Wireless Settings
screen.
To view or configure the wireless settings:
1. Use an Ethernet cable to connect your computer to a LAN port on the modem router.
Note: If you connect wirelessly to the modem router and then change its
wireless network name (SSID) or wireless security, you are
disconnected after you click the Apply button on the Wireless Settings
screen.
2. Type http://192.168.0.1 in the address field of your web browser.
A login screen displays.
3. Enter the modem router user name and password.
The default user name is admin. The default password is password. The user name and
password are case-sensitive.
The modem router main menu displays.
4. In the main menu, under Setup, select Wireless Settings.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
The following screen displays:
5. Specify the Wireless Network settings for your network:
•Name (SSID). The name of the wireless network.
The default wireless network name (SSID) for the modem router appears on the label
of the modem router. You can enter a different name here for better wireless security
and to make it easier to recognize your network when you want to connect to it
wirelessly.
•Region. The location where the modem router operates.
•Channel. The available channels depend on the region. Some countries have laws
specifying which channels should be used. To reduce interference when using more
than one access point, NETGEAR recommends using five-channel spacing between
adjacent access points (for example, use Channels 1 and 6, or 6 and 11).
•802.11 Mode. This value is set to Up to 217 Mbps by default. You can specify the
mode to support faster equipment or legacy equipment.
6. Specify the security options:
By default the modem router works with WPA and WPA 2 wireless security. You can
specify the network key, which works like a password to access the wireless network.
a. Set up WPA or WPA2 wireless security. Select one of the following radio buttons:
•WPA-PSK. This setting provides the TKIP encryption type and a pre-shared key.
•WPA2-PSK. This setting provides the AES encryption type and a pre-shared key.

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Note: Configure your wireless computers with the same WPA2 or WPA
settings as your modem router so that you can connect.
b. Depending on the WPA setting that you select, enter the required information.
For WPA-PSK or WPA2-PSK, enter the pre-shared key, which is a password between
8
and 63 characters. The default WPA password appears on the label of your modem
router.
Note: By default, the modem router is set up to work with WPA and WPA2
wireless security, both of which are newer than WEP. Typically, the
only reason you might need to set up WEP would be to allow access
to older wireless computers or devices that cannot support WPA.
7. Click the Apply button.
Note: If you plan to use WPS, and you want to keep your wireless settings
the same, go to the Advance Wireless Settings screen and make sure
that the Keep Existing Settings check box is selected. See Advanced
Wireless Settings on page 52.
Use WPS Wireless Setup
Wi-Fi Protected Setup (WPS) can be a quick way to automatically set up your modem
router’s wireless network and set up your wireless computer to connect to it at the same time.
WPS is relatively new technology, so before you decide to use it, check to make sure that
your wireless computers and devices support WPS. NETGEAR calls WPS Push 'N' Connect.
Look for the WPS symbol on all the computers that connect wirelessly to the modem
router. If you do not see the WPS symbol on all the computers that connect to the
wireless network, then you should manually set up your network first (see Configure Wireless
Settings Manually on page 18). After that, you can still use WPS to set up the wireless
connection for the computers that support WPS.
Note: All WPS-capable products should be compatible with the modem
router. For more information about the WPS standard, visit
http://www.wi-fi.org).
Two Push 'N' Connect methods are available, WPS button and PIN (personal identification
number).