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Netgear C7500 User Manual

Nighthawk X4 AC3200 WiFi Cable Modem Router
User Manual
Model C7500
December 2017 202-11816-01
350 E. Plumeria Drive San Jose, CA 95134 USA
Nighthawk X4 AC3200 WiFi Cable Modem Router
Support
Thank you for purchasing this NETGEAR product. You can visit www.netgear.com/support to register your product, get help, access the latest do wnloads and user
manuals, and join our community.We recommend that you use only official NETGEAR support resources. Contact your Internet service provider for technical support.
Trademarks
©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any non-NETGEAR trademarks are used for reference purposes only.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory. See the regulatory compliance document before connecting the power supply.
2

Contents

Chapter 1 Hardware Setup
Unpack Your Modem Router..................................................................................8
Top and Front Panel...............................................................................................8
LEDs......................................................................................................................9
Rear Panel...........................................................................................................11
Label....................................................................................................................12
System Requirements..........................................................................................12
Position Your Modem Router................................................................................13
Install and Activate Your Modem Router..............................................................13
Connect Your Modem Router to a Computer...................................................14
Activate Your Internet Service.........................................................................15
Perfor m a Speed Test......................................................................................16
Connect Your Modem Router to a Router After Installation and Activation..........16
Chapter 2 Connect to the Network and Access the Modem Router
Connect to the Network.......................................................................................19
Wired Connection............................................................................................19
Find and Select the Modem Router WiFi Network..........................................19
Use WPS to Connect to the Modem Router WiFi Network.............................19
Types of Logins....................................................................................................20
Log In to the Modem Router................................................................................20
Access the Modem Router With NETGEAR genie App.......................................20
Chapter 3 Specify Your Internet Settings
Specify the Cable Connection Starting Frequency..............................................23
View Modem Router Initialization.........................................................................23
Manually Set Up the Internet Connection............................................................24
Change the MTU Size..........................................................................................25
Chapter 4 Control Access to the Internet
Set Up Parental Controls.....................................................................................28
Block Access to Your Network..............................................................................28
Use Keywords to Block Inter net Sites..................................................................29
Delete a Keyword.................................................................................................31
Block Services From the Internet.........................................................................31
Schedule When to Block Internet Sites and Services..........................................32
Avoid Blocking on a Trusted Computer................................................................33
Set Up Security Event Email Notifications...........................................................33
Enable or Disable NAT.........................................................................................35
Chapter 5 Share USB Devices Attached to the Modem Router
USB Storage Device Requirements.....................................................................37
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Nighthawk X4 AC3200 WiFi Cable Modem Router
Connect a USB Storage Device to the Modem Router........................................37
Access a USB Drive Connected to the Modem Router From a Windows-Based
Computer.............................................................................................................37
Map a USB Device to a Windows Network Dr ive.................................................38
Access a USB Storage Device That Is Connected to the Modem Router From a
Mac......................................................................................................................38
Control Access to the USB Storage Device.........................................................39
Use FTP Within the Network................................................................................40
View or Change Network Folders on a USB Storage Device...............................40
Add a Network Folder on a USB Storage Device................................................41
Edit a Network Folder on a USB Storage Device.................................................42
Approve USB Devices..........................................................................................42
Access the USB Storage Device Through the Inter net........................................43
Set Up FTP Access Through the Internet............................................................44
Access the USB Storage Device Through the Inter net With FTP........................44
Safely Remove a USB Storage Device................................................................45
Chapter 6 Share a USB Printer
Install the Printer Driver and Cable the Printer....................................................47
Download the ReadySHARE Printer Utility..........................................................47
Install the ReadySHARE Printer Utility................................................................47
Print Using the NETGEAR USB Control Center..................................................48
Chapter 7 Specify Network Settings
View or Change the WAN Settings......................................................................50
Set Up a Default DMZ Server..............................................................................50
Change the Modem Router’s Device Name.........................................................51
Change the LAN TCP/IP Settings........................................................................52
Specify the IP Addresses That the Modem Router Assigns................................53
Disable the DHCP Server Feature in the Modem Router....................................54
Manage LAN IP Addresses..................................................................................54
Reserve an IP Address...................................................................................54
Edit a Reserved IP Address Entry...................................................................55
Delete a Reserved IP Address Entry..............................................................56
Improve Network Connections With Universal Plug-N-Play.................................56
Use the WPS Wizard for WiFi Connections.........................................................57
Specify Basic WiFi Settings.................................................................................58
Change the WiFi Security Option.........................................................................59
Set Up a Guest Network......................................................................................60
Control the WiFi Radios.......................................................................................61
Use the WiFi On/Off Button.............................................................................61
Enable or Disable the WiFi Radios..................................................................61
Set Up a WiFi Schedule.......................................................................................62
Specify WPS Settings..........................................................................................62
Chapter 8 Manage Your Network
Change the admin Password...............................................................................65
Set Up Password Recovery.................................................................................65
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Nighthawk X4 AC3200 WiFi Cable Modem Router
Recover the admin Password..............................................................................66
View Modem Router Status.................................................................................66
Display Internet Port Statistics.............................................................................68
Check the Internet Connection Status.................................................................68
View Logs of Modem Router Activity...................................................................69
View Event Logs..................................................................................................70
Run the Ping Utility..............................................................................................70
Run the Traceroute Utility.....................................................................................71
Monitor Internet Traffic.........................................................................................72
View Devices Currently on the Network...............................................................73
Manage the Modem Router Configuration File....................................................74
Back Up Settings.............................................................................................74
Restore Configuration Settings.......................................................................75
Erase the Current Configuration Settings........................................................75
View or Change the Modem Router WiFi Channel..............................................76
Dynamic DNS......................................................................................................76
Specify a DNS Account...................................................................................77
Change the Dynamic DNS Settings................................................................77
Remote Management..........................................................................................78
Setting Up Remote Management....................................................................78
Using Remote Access.....................................................................................79
Chapter 9 Specify Internet Port Settings
Set Up Port Forwarding to a Local Server...........................................................81
Add a Custom Port Forwarding Service...............................................................82
Edit a Port Forwarding Service............................................................................83
Delete a Port Forwarding Entry............................................................................83
Application Example: Make a Local Web Server Public.......................................84
How the Modem Router Implements the Port Forwarding Rule...........................84
Set Up Port Triggering..........................................................................................84
Add a Port Triggering Service..........................................................................85
Application Example: Port Triggering for Internet Relay Chat..........................86
Chapter 10 Troubleshooting
Troubleshoot With the LEDs.................................................................................88
Power LED Is Off.............................................................................................88
LEDs Never Turn Off.......................................................................................88
Internet LED Is Off..........................................................................................88
Troubleshoot the Cable Internet Connection........................................................88
Cannot Log In to the Modem Router....................................................................89
Changes Not Saved.............................................................................................89
WiFi Connectivity.................................................................................................90
Troubleshoot Your Network Using the Ping Utility................................................90
Test the LAN Path to Your Modem Router.......................................................91
Test the Path From Your Computer to a Remote Device.................................91
Chapter 11 Supplemental Information
Factory Settings...................................................................................................94
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Nighthawk X4 AC3200 WiFi Cable Modem Router
Technical Specifications.......................................................................................95
6

Hardware Setup

This chapter covers the following topics:
• Unpack Your Modem Router
• Top and Front Panel
• LEDs
• Rear Panel
• Label
• System Requirements
• Position Your Modem Router
• Install and Activate Your Modem Router
• Connect Your Modem Router to a Router After Installation and Activation
For more information about the topics cov ered in this manual, visit the support website at support.netgear.com.
1
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Unpack Your Modem Router

Your package contains the following items.
Figure 1. Package contents
1. Nighthawk X4 AC3200 WiFi Cable Modem Router (Model C7500)
2. Ethernet cable
3. Power adapter

Top and Front Panel

Status LEDs are located on the top of the modem router. Buttons are located on the front. USB ports 1 and 2 are located on the side.
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router

LEDs

You can use the LEDs to verify status and connections.The following table lists and describes each LED on the top panel of the modem router.
Table 1. LED descriptions
DescriptionLED
Power
• Solid White. Power is supplied to the modem router.
• Off. No power is supplied to the modem router.
• Solid red.Thermal cutoff mode. P o wer off the modem router, let it cool, and mov e it a wa y from heat
sources (such as a TV, DVD player, or speakers).
Downstream
• Solid amber. One downstream channel is locked.
• Solid white.Two or more downstream channels are locked.
• Blinking white.The modem router is scanning for a downstream channel.
• Off. No downstream channel is locked.
Upstream
Internet
2.4 GHz radio
5 GHz radio
• Solid amber. One upstream channel is locked.
• Solid white.Two or more upstream channels are locked.
• Blinking white.The modem router is scanning for an upstream channel.
• Off. No upstream channel is locked.
• Solid white.The modem router is online.
• Blinking white.The modem router is synchronizing with the cable provider’s cable modem termination
system (CMTS).
• Slow blinking amber and white.The modem router reached the traffic meter limit.
• Off.The modem router is offline.
• Solid white.The 2.4 GHz WiFi radio is operating.
• Blinking.The router is sending or receiving WiFi traffic.
• Off.The 2.4 GHz WiFi radio is off.
• Solid white.The 5 GHz WiFi radio is operating.
• Blinking.The router is sending or receiving WiFi traffic.
• Off.The 5 GHz WiFi radio is off.
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Nighthawk X4 AC3200 WiFi Cable Modem Router
Table 1. LED descriptions (Continued)
USB 1 and USB 2
• Solid white. A USB device is connected and is ready.
• Off. No USB device is connected, or someone clicked the Safely Remove Hardware button and it
is now safe to remove the attached USB device.
Ethernet
The LED color indicates the speed: white for Gigabit Ethernet connections and amber for 100 Mbps or 10 Mbps Ethernet connections.
• Solid. A powered-on device is connected to the Ethernet port.
• Blinking.The port is sending or receiving traffic.
• Off. No device is connected to this Ethernet port.
The following buttons are located on the front of the modem router:
• LED. Pressing this button turns the modem router LEDs off and on.
• WPS.This button lets you use WPS to join the WiFi network without typing the WiFi password.The
WPS LED blinks during this process and then lights solid.
• WiFi. Pressing this button for two seconds turns the WiFi radios in the modem router on and off. If this
LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and you cannot use WiFi to connect to the modem router.
DescriptionButton Pressing this button changes the LED mode:
LED
• Mode one. All LEDs stay on and blink.
• Mode two. All LEDs stay on but don’t blink.
• Mode three. Only the Power LED stays on and the other LEDs are off.
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router
(Continued)
Pressing this button lets you use WPS to join the WiFi network without typing the WiFi
WPS
password. Pressing this button for two seconds turns the 2.4 GHz and 5 GHz WiFi radios on and off.WiFi

Rear Panel

The connections and button on the rear panel are shown in the following figure.
Figure 2. Modem router rear panel
Viewed from left to right, the back panel contains the following components:
• Reset button. Pressing the Reset button resets the modem router. If the Reset button is pressed for
at least seven seconds and the P ow er LED blinks white, the modem router returns to its factory settings.
• Ethernet ports. Four Gigabit Ethernet RJ-45 LAN ports to connect the modem router to LAN devices.
• Cable port. Connect the cable port to a cable wall outlet or a line splitter.
• DC power connector. Connect the power adapter that came in the product package to the DC power
connector.
• Power On/Off button. Press the Power On/Off button to provide power to the modem router.
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Label

The modem router label shows the login information, MAC address, and serial number.
Figure 3. Modem router label

System Requirements

You need the following to install your modem router:
• Compatible operating system:
- Windows® 7
- Windows 8
- Windows 10
- Windows Vista®
- Windows XP®
- Windows 2000
- Mac OS®
- UNIX®
- Linux®
• Compatible web browser:
- Microsoft® Internet Explorer® 5.0 or higher
- Firefox® 2.0 or higher
- Safari® 1.4 or higher
- Google Chrome™ 11.0 or higher
• Cable Internet service
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Position Your Modem Router

The modem router lets you access your network anywhere within the operating r ange of your WiFi network. However, the operating distance or range of your WiFi connection can vary significantly depending on the physical placement of your modem router. For example, the thickness and number of walls the WiFi signal passes through can limit the range.
Additionally, other WiFi access points in and around your home might affect your modem router’s signal. WiFi access points are modem routers, repeaters, WiFi range extenders, and any other device that emits a WiFi signal for network access.
Position your modem router according to the following guidelines:
• Place your modem router near the center of the area where your computers and other de vices operate,
and within line of sight to your WiFi devices.
• Make sure that the modem router is within reach of an AC power outlet and near Ethernet cables for
wired computers.
• Place the modem router in an elevated location, minimizing the number w alls and ceilings betw een the
modem router and your other devices.
• Place the modem router away from electrical devices such as these:
- Ceiling fans
- Home security systems
- Microwaves
- Computers
- Base of a cordless phone
- 2.4 GHz cordless phone
• Place the modem router away from large metal surfaces, large glass surfaces, and insulated walls, and
items such as these:
- Solid metal doors
- Aluminum studs
- Fish tanks
- Mirrors
- Brick
- Concrete

Install and Activate Your Modem Router

The modem router provides a connection between your cable Internet provider’ s network and your computer , router, or WiFi router.
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Connect Your Modem Router to a Computer

During the installation and activation, you must connect the modem router directly to a computer. After installation and activation, you can connect the modem router to a router.
Figure 4. Connect the modem router directly to a computer
Before you connect your modem router and contact your cable Internet provider,
Note
collect your cable account number, account phone number, and login information (your email address or user name and password).
To connect your modem router directly to a computer:
1. Connect a coaxial cable.
Use the coaxial cable that your cable compan y provided to connect the cab le port on the modem router to a cable wall outlet or a line splitter. Make sure that the cable is tightly connected.
Xfinity recommends connecting your modem router directly to a cable wall outlet.Note
2. Connect the power adapter provided in the package to the modem router and plug the power adapter
into an electrical outlet. When the startup procedure is complete, the Power LED lights solid white.
If the Pow er LED does not light, press the Power On/Off button on the rear panel of the modem router.
3. Wait for the modem router to come online.
When the modem router comes online, the Internet LED stops blinking and lights solid white. This process might take up to 10 minutes.
4. Connect a computer or mobile device to the modem router with a WiFi or wired connection:
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router
• WiFi. Use the WiFi network name and password on the modem router label.
• Wired. Use an Ethernet cable to connect a computer to an Ethernet port on the modem router.
5. Log in to your modem router.
For more information, see Log In to the Modem Router on page 20.
Even though an Internet connection is established, Internet service is available only after you set it up with your cable Internet provider.
For information about how to activate your Internet service, see Activate Your Internet Service on page 15.

Activate Your Internet Service

Before you activate your Internet service, gather the following information:
• Your cable Internet provider account information
• Modem router model number, which is C7500
• Modem router serial number, which is on the modem router label
• Modem router MAC address, which is on the modem router label
Your modem router’s serial number and MAC address are on the modem router label.
The following is contact information for cable Internet providers that support your modem router.
Hardware Setup
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Nighthawk X4 AC3200 WiFi Cable Modem Router
Table 2. Cable Internet provider contact information
Contact InformationCable Internet
Provider
Cox
Spectrum
Xfinity
Your cable Internet provider’s contact information might change.You can find the
Note
contact information in your monthly Internet service billing statement.
https://www.cox.com/activate
1-800-234-3993
https://activate.spectrum.net/
1-(833) 267-6094
https://register.xfinity.com https://www.xfinity.com/support/internet/activate-purchased-modem/
1-800-XFINITY (1-800-934-6489)
To activate your Internet service:
1. Visit your cable Internet provider’ s website and f ollow the onscreen instructions to activ ate your Internet
service.
2. If you are unable to activate y our Internet service using the instructions on your cable Internet provider’s
website, call your cable Internet provider for support.
3. To determine the accurate Internet speed, visit your cable Internet provider's speed test website and
perform a speed test. . If your actual speed is lower than your subscribed speed, contact your cable Internet provider.

Perform a Speed Test

To determine the accurate Internet speed, visit the speed test website of your cable Internet provider and perform a speed test.
If your actual speed is lower than your subscribed speed, contact your cable Internet provider.

Connect Your Modem Router to a Router After Installation and Activation

During the installation and activation, you must connect the modem router directly to a computer. After installation and activation, you can connect the modem router to a router.
If you want to connect your modem router to a router, you must disable NAT.With NAT disabled, to avoid conflicting with the other router on the network, the modem router does not use NAT.
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Nighthawk X4 AC3200 WiFi Cable Modem Router
T o disable NAT and connect your modem r outer to a router after installation and activ ation:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Advanced Setup > NAT Mode.
The NAT page displays.
5. Clear the Turn NAT On check box.
6. Click the Apply button.
Your settings are saved.
7. Follow the instructions that came with your router or gateway to connect it to the modem router.
Hardware Setup
17

Connect to the Network and Access the Modem Router

This chapter contains the following sections:
• Connect to the Network
• Types of Logins
• Log In to the Modem Router
• Access the Modem Router With NETGEAR genie App
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Connect to the Network

You can connect to the modem router’s network through a wired or WiFi connection. If you set up your computer to use a static IP address, change the settings so that it uses Dynamic Host Configuration Protocol (DHCP).

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 is receiving power (its Power LED is lit).
2. Connect an Ethernet cable to an Ethernet port on your computer.
3. Connect the other end of the Ethernet cable to one of the numbered Ethernet 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.

Find and Select the Modem Router WiFi Network

To find and select the WiFi network:
1. Make sure that the modem router is receiving 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 label.
3. Join the WiFi network and enter the WiFi password.
The password is on the modem router label. Your computer or mobile device connects to the WiFi network.

Use WPS to Connect to the Modem Router WiFi Network

You can connect a WPS-enabled device to the modem router’s WiFi network with Wi-Fi Protected Setup (WPS).
To use WPS to connect to the WiFi network:
1. Make sure that the modem router is receiving power (its Power LED is lit).
2. Check the WPS instructions for your WPS-enabled device.
3. Press the WPS button on the modem router.
4. Within two minutes, on your WPS-enabled device, press its WPS button or follow its instructions for
WPS connections. Your WPS-enabled device connects to the WiFi network.
Connect to the Network and Access the Modem Router
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Types of Logins

Separate types of logins serve different purposes. It is important that you understand the difference so that you know which login to use when.
Types of logins:
• WiFi network key or passw ord.Your modem router is preset with a unique WiFi network name (SSID)
and password for WiFi access.This information is on the modem router label.
Your modem router broadcasts dual-band 2.4 GHz and 5 GHz WiFi signals.The label
Note
shows the SSID for the 2.4 GHz signal. For information about 5 GHz WiFi settings, see Specify Basic WiFi Settings on page 58.
• Modem router login.This logs you in to the modem router web pages as admin from an Internet
browser.

Log In to the Modem Router

When you connect to the network (either with WiFi or with an Ethernet cable), you can use a web browser to access the modem router to view or change its settings.The first time you access the modem router, the modem router automatically checks to see if it can connect to your Internet service.
To log in to the modem router:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The first time that you log in to the modem router, you are prompted to set the admin
Note
password and set up security questions.You must enter these settings before you can access the Internet.
The BASIC Home page displays the status of the Internet connection.

Access the Modem Router With NETGEAR genie App

The genie® app is the easy dashboard for managing, monitoring, and repairing your home network.The genie app can help you with the following:
Connect to the Network and Access the Modem Router
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Nighthawk X4 AC3200 WiFi Cable Modem Router
• Automatically repair common WiFi network problems.
• Easily manage modem router features like P arental Controls, guest access, Internet traffic meter , speed
test, and more.
To use the genie app to access the modem router:
1. Visit the NETGEAR genie web page at NETGEAR.com/genie.
2. Follow the onscreen instructions to install the app on your smartphone or tablet.
3. Launch the genie app.
The genie app dashboard page displays.
Connect to the Network and Access the Modem Router
21

Specify Your Internet Settings

Usually, the quickest way to set up the modem router to use your Internet connection is to allow the modem router to detect the Internet connection when you first access the modem router with an Internet browser.You can also customize or specify your Internet settings.
This chapter contains the following sections:
• Specify the Cable Connection Starting Frequency
• View Modem Router Initialization
• Manually Set Up the Internet Connection
• Change the MTU Size
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Specify the Cable Connection Starting Frequency

The starting frequency is automatically generated. For most Internet connections, y ou do not need to specify this information. If you must enter a starting frequency, contact your Internet provider.
To change the starting frequency:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select Cable Connection.
The Cable Connection page displays the status of all downstream and upstream channels.
5. Enter the starting frequency.
6. Click the Apply button.
Your settings are saved.

View Modem Router Initialization

You can track the initialization procedure of the modem router and get details about the downstream and upstream cable channel.The time is displayed after the modem router is initialized.
The modem router automatically goes through the following steps in the provisioning process:
1. Scans and locks the downstream frequency and then ranges the upstream channels.
2. Obtains a WAN address for the modem router.
3. Connects to the Internet.
To view the status of the modem router initialization:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select Cable Connection.
The Cable Connection page displays.
Specify Your Internet Settings
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Nighthawk X4 AC3200 WiFi Cable Modem Router
The Startup Procedure section displays the initialization progress.The page also displays the status of all downstream and upstream channels. (You must scroll down to view all the channels.) The number of downstream and upstream channels that are locked depends on the number of channels that your Internet provider uses.

Manually Set Up the Internet Connection

In most situations, you do not need to change these settings.We recommend that you use the default settings for DHCP because most cable Internet services provide the IP address through DHCP.
To specify the Internet connection settings:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Setup > Internet.
The Internet Setup page displays.
5. If your Internet connection requires an account name or host name, type it in the Account Name (If
Required) field.
6. If your Internet connection requires a domain name, type it in the Domain Name (If Required) field.
For the other sections in this page, the default settings usually work, but you can change them.
7. Select an Internet IP Address radio button:
• Get Dynamically from ISP.Y our ISP uses DHCP to assign y our IP address.Y our ISP automatically
assigns these addresses.
• Use Static IP Address. Enter the IP address, IP subnet mask, and the gateway IP address that
your ISP assigned.The gateway is the ISP modem router to which your modem router connects.
8. Select a Domain Name Server (DNS) Address radio button:
• Get Automatically from ISP.Your ISP uses DHCP to assign your DNS servers.Your ISP
automatically assigns this address.
• Use These DNS Servers. If you know that your ISP requires specific servers, select this option.
Enter the IP address of your ISP’s primary DNS server. If a secondary DNS server address is available, enter it also.
9. Click the Apply button.
Your settings are saved.
Specify Your Internet Settings
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Change the MTU Size

The maximum transmission unit (MTU) is the largest data packet a network device transmits.When one network device communicates across the Internet with another, the data pac kets tra vel through many de vices along the way. If a de vice in the data path uses a lo wer MTU setting than the other devices , the data pack ets must be split or “fragmented” to accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default value. In some situations, changing the value fixes one problem but causes another. Leave the MTU unchanged unless one of these situations occurs:
• You experience problems connecting to your ISP or other Internet service, and the technical support of
either the ISP or NETGEAR recommends changing the MTU setting.These web-based applications might require an MTU change:
- A secure website that does not open, or displays only part of a web page
- Yahoo email
- MSN portal
- America Online’s DSL service
• You use VPN and experience severe performance problems.
• You used a program to optimize MTU for perf ormance reasons, and now you are e xperiencing connectivity
or performance problems.
An incorrect MTU setting can cause Internet communication problems. For example,
Note
you might not be able to access certain websites, frames within websites, secure login pages, or FTP or POP servers.
To change the MTU size:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Setup > WAN Setup.
The WAN Setup page displays.
5. In the MTU Size field, enter a value from 64 to 1500.
6. Click the Apply button.
Your settings are saved.
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Nighthawk X4 AC3200 WiFi Cable Modem Router
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are willing to e xperiment, you can gradually reduce the MTU from the maximum v alue of 1500 until the prob lem goes away.The following table describes common MTU sizes and applications.
Table 3. Common MTU sizes
ApplicationMTU The largest Ethernet packet size.This setting is typical for connections that do not use PPPoE or VPN, and is the
1500
default value for NETGEAR routers, adapters, and switches. Used in PPPoE environments.1492 Maximum size to use for pinging. (Larger packets are fragmented.)1472 Used in some DHCP environments.1468 Usable by AOL if you do not send or receive large email attachments, for example.1460
Specify Your Internet Settings
26

Control Access to the Internet

The modem router comes with a built-in firewall that helps protect y our home network from unwanted intrusions from the Internet.
This chapter includes the following sections:
• Set Up Parental Controls
• Block Access to Your Network
• Use Keywords to Block Internet Sites
• Block Services From the Internet
• Schedule When to Block Internet Sites and Services
• Avoid Blocking on a Trusted Computer
• Set Up Security Event Email Notifications
• Enable or Disable NAT
4
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Nighthawk X4 AC3200 WiFi Cable Modem Router

Set Up Parental Controls

To set up Parental Controls, you must do wnload the NETGEAR genie app on your mobile device. For more information about the NETGEAR genie app, visit NETGEAR.com/genie.
After you set up and enable Parental Controls, you can change the web filtering level for each device on the network through the network map page on the genie app.
To set up Parental Controls:
1. Connect your mobile device to your router’s WiFi network.
2. Launch the app store on your mobile device and download the NETGEAR genie app.
3. Launch the NETGEAR genie app.
The dashboard displays.
4. Tap Parental Controls.
The Parental Controls page displays.
5. To log in to your OpenDNS account, tap the LOGIN button, enter your OpenDNS user name, and tap
the LOGIN button. Parental Controls is automatically enabled.
6. To create an OpenDNS account, tap CREATE ACCOUNT, fill in the fields, tap the SIGN UP button.
Your account is created and Parental Controls is automatically enabled. For more information about how to setup Parental Controls using the NETGEAR genie app, see the
genie Mobile App User Manual, which is available at downloadcenter.netgear.com/.

Block Access to Your Network

You can use access control to block access to your network.
To set up access control:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Security > Access Control.
The Access Control page displays.
5. Select the Turn on Access Control check box.
You must select this check box before you can specify an access rule and use the Allow and Block buttons.When this check box is cleared, all devices are allowed to connect, even if the device is in the blocked list.
Control Access to the Internet
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Nighthawk X4 AC3200 WiFi Cable Modem Router
6. Select an access rule:
• Allow all new devices to connect.With this setting, if you buy a new device, it can access your
network.You don’t need to enter its MAC address on this page.We recommend that you leave this radio button selected.
• Block all new devices from connecting.With this setting, if you buy a new device, before it can
access your network, you must enter its MAC address for an Ethernet connection and its MAC address for a WiFi connection in the allowed list.
The access rule does not affect previously blocked or allowed devices. It applies only to devices joining your network in the future after you apply these settings.
7. To allow the computer or device you’re currently using to continue to access the network, select the
check box next to your computer or device, and click the Allow button.
8. Click the Apply button.
Your settings are saved.

Use Keywords to Block Internet Sites

You can use keywords to block certain Internet sites from your network.You can use blocking all the time or based on a schedule.
To block Internet sites:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter the modem router admin user name and password.
The user name is admin.The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Security > Block Sites.
The Block Sites page displays.
5. Select a keyword blocking option:
• Never.Turn off keyword blocking.
• Per Schedule.Turn on keyword blocking according to a schedule that you set. (See Schedule
When to Block Internet Sites and Services on page 32.)
• Always.Turn on keyword blocking all the time, independent of the Schedule page.
6. In the Type keyword or domain here field, enter a keyword or domain that you want to block.
For example:
Control Access to the Internet
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