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Netgear C7000 User Manual

User Manual

AC1900 WiFi Cable Modem Router Model C7000v2
February 2021 202-12224-01
NETGEAR, Inc. 350 East Plumeria Drive San Jose, CA 95134, USA
Support and Community
Visit netgear.com/support to get your questions answered and access the latest downloads.
You can also check out our NETGEAR Community for helpful advice at community.netgear.com.
Customer-owned cable devices might not be compatible with certain cable networks. Check with your
cable Internet provider to confirm that this NETGEAR cable device is allowed on your cable network.
If you are experiencing trouble installing your cable device, contact NETGEAR at 1-866-874-8924.
Note to CATV system installer: This reminder is provided to call the CATV systems installer’s attention
to Section 820-93 of the National Electrical Code, which provide guidelines for proper grounding
and in particular, specify that coaxial cable shield shall be connected to the grounding system of the
building, as close to the point of cable entry as practical.
Regulatory and Legal
Si ce produit est vendu au Canada, vous pouvez accéder à ce document en français canadien à
https://www.netgear.com/support/download/.
(If this product is sold in Canada, you can access this document in Canadian French at
https://www.netgear.com/support/download/.)
For regulatory compliance information including the EU Declaration of Conformity, visit
https://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply. For NETGEAR’s Privacy
Policy, visit https://www.netgear.com/about/privacy-policy.
By using this device, you are agreeing to NETGEAR’s Terms and Conditions at
https://www.netgear.com/about/terms-and-conditions. If you do not agree, return the device to your
place of purchase within your return period.
Trademarks
©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR.
User Manual2

Contents

Chapter 1 Hardware Setup
Chapter 2 Connect to the Network and Access the Modem Router
Unpack Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
LED Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Position Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Install and Activate Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Connect Your Modem Router to a Computer . . . . . . . . . . . . . . . . . . . . .14
Activate Your Internet Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Activate Your Internet Service With Comcast Xfinity. . . . . . . . . . . . . . . .16
Perform a Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Connect Your Modem Router to a Router After Installation and Activation17
Connect to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Wired Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
WiFi Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Types of Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Access the Modem Router With NETGEAR genie App . . . . . . . . . . . . . . . . 24
Chapter 3 Specify Your Internet Settings
Specify the Cable Connection Starting Frequency . . . . . . . . . . . . . . . . . . .26
View Modem Router Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Manually Set Up the Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Specify an IPv6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Change the MTU Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 4 Control Access to the Internet
Block Access to Your Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Use Keywords to Block Internet Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Block Services From the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Schedule When to Block Internet Sites and Services . . . . . . . . . . . . . . . . . . 38
Avoid Blocking on a Trusted Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Set Up Security Event Email Notifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4
Chapter 5 Share USB Devices Attached to the Modem Router
USB Storage Device Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Connect a USB Storage Device to the Modem Router . . . . . . . . . . . . . . . . 43
Access a USB Drive Connected to the Modem Router From a Windows Computer 44
Map a USB Device to a Windows Network Drive . . . . . . . . . . . . . . . . . . . . .45
Access a USB Storage Device That Is Connected to the Modem Router From a Mac 46
Control Access to the USB Storage Device . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Use FTP Within the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
View or Change Network Folders on a USB Storage Device . . . . . . . . . . .49
Add a Network Folder on a USB storage device. . . . . . . . . . . . . . . . . . . . . . 50
Edit a Network Folder on a USB storage device . . . . . . . . . . . . . . . . . . . . . . 51
Approve USB Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Access the USB storage device Through the Internet . . . . . . . . . . . . . . . . .53
Set Up FTP Access Through the Internet. . . . . . . . . . . . . . . . . . . . . . . . . .53
Access the USB storage device Through the Internet with FTP. . . . . . .54
Safely Remove a USB storage device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Chapter 6 Share a USB Printer
Install the Printer Driver and Cable the Printer . . . . . . . . . . . . . . . . . . . . . . .57
Download the ReadySHARE Printer Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Install the ReadySHARE Printer Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Use the Shared Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
View or Change the Status of a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Use the Scan Feature of a Multifunction USB Printer . . . . . . . . . . . . . . . . . . 61
Change NETGEAR USB Control Center Settings . . . . . . . . . . . . . . . . . . . . . 62
Chapter 7 Specify Network Settings
View WAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Set Up a Default DMZ Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Change the Modem Router’s Device Name . . . . . . . . . . . . . . . . . . . . . . . . .67
Change the LAN TCP/IP Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Specify the IP Addresses That the Modem Router Assigns . . . . . . . . . . . . . 69
Disable the DHCP Server Feature in the Modem Router. . . . . . . . . . . . . . . 70
Reserve LAN IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Improve Network Connections With Universal Plug and Play. . . . . . . . . . . 72
Use the WPS Wizard for WiFi Connections . . . . . . . . . . . . . . . . . . . . . . . . . .73
Specify Basic WiFi Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Change the WiFi Security Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Set Up a Guest Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Control the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Use the WiFi On/Off Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Enable or Disable the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Set Up a Wireless Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Specify WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
User Manual5
Chapter 8 Manage Your Network
Change the Admin Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Set Up Password Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Recover the admin Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
View Modem Router Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Display Internet Port Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Check the Internet Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
View Logs of Modem Router Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
View Event Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Run the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Run the Traceroute Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Monitor Internet Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
View Devices Currently on the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Manage the Modem Router Configuration File . . . . . . . . . . . . . . . . . . . . . . 96
Back Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Restore Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Erase the Current Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . .98
View Wireless Access Points in Your Area . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
View or Change the Modem Router Wireless Channel . . . . . . . . . . . . . . . . 99
Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Specify a DNS Account. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Change the Dynamic DNS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Chapter 9 Specify Internet Port Settings
Set Up Port Forwarding to a Local Server . . . . . . . . . . . . . . . . . . . . . . . . . .105
Add a Custom Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . .106
Edit a Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Delete a Port Forwarding Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
Application Example: Make a Local Web Server Public . . . . . . . . . . . .108
How the Modem Router Implements the Port Forwarding Rule . . . . .109
Set Up Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Add a Port Triggering Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Application Example: Port Triggering for Internet Relay Chat . . . . . .111
Chapter 10 Troubleshooting
Troubleshoot With the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Power LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
LEDs Never Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Internet LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Troubleshoot the Cable Internet Connection . . . . . . . . . . . . . . . . . . . . . . .115
Cannot Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Changes Not Saved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Wireless Connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Troubleshoot Your Network Using the Ping Utility . . . . . . . . . . . . . . . . . . .118
Test the LAN Path to Your Modem Router . . . . . . . . . . . . . . . . . . . . . . .118
User Manual6
Test the Path From Your Computer to a Remote Device . . . . . . . . . . 119
Appendix A Supplemental Information
Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
User Manual7
1

1Hardware Setup

This chapter covers the following topics:
• Unpack Your Modem Router
• Front Panel
• LED Descriptions
• Rear Panel
• 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 covered in this manual, visit the support website at
http://support.netgear.com.
8
Nighthawk AC1900 WiFi Cable Modem Router
Ethernet cable
Power adapter
Modem router

Unpack Your Modem Router

Your package contains the following items.
Figure 1. Package contents
Hardware Setup User Manual9
Nighthawk AC1900 WiFi Cable Modem Router
Power LED
Downstream LED Upstream LED Internet LED
WPS button / LED
WiFi On/Off button
5 GHz LED
2.4 GHz LED
Ethernet LED

Front Panel

Status LEDs and buttons are located on the front or the modem router.
Figure 2. Modem router front view

LED Descriptions

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.
LED Description
Power
Downstream
Hardware Setup User Manual10
• Green. Power is supplied to the modem router.
• Red. Power is cut of
ventilated area and power cycle the unit.
• Off. No powe
• Solid green. One or more downstream channels are locked.
• Blinking green. The
• Off. No down
f due to a thermal error caused by heat. Move the unit to a well
r is supplied to the modem router.
unit is scanning for a downstream channel.
stream channel is locked.
Nighthawk AC1900 WiFi Cable Modem Router
LED Description
Upstream
Internet
2.4 GHz radio
5 GHz radio
Ethernet
WPS button with LED
• Solid green. One or more upstream channels are locked.
• Blinking green. T
• Off.
No upstream channel is locked.
he unit is scanning for an upstream channel.
• Solid green. The modem router is online.
• Blinking green. The modem router is synchronizing with the cable provider’s cable
modem termination system (CMTS).
• Off. T
he modem router is offline.
• Green. The 2.4 GHz radio is on.
• Blinking green. T
• Off. T
he 2.4 GHz radio is off.
here is WiFi traffic on the 2.4 GHz band.
• Green. The 5 GHz radio is on.
• Blinking green. There is WiFi traffic on the 5 GHz band.
• Off. T
he 5 GHz radio is off.
• Green. A device is connected to an Ethernet port and powered on.
• Blinking green. T
• Off.
No device is connected to an Ethernet port.
he Ethernet port is sending or receiving traffic.
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 On/Off button with LED
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.
Hardware Setup User Manual11
Nighthawk AC1900 WiFi Cable Modem Router
USB 2.0 port
Ethernet ports
Reset button
Coaxial cable connector
Power adapter input

Rear Panel

The connections and button on the rear panel are shown the following figure.
Figure 3. Modem router rear panel

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
r’s signal. Wireless access points are modem routers, repeaters, WiFi range extenders,
route and any other device that emits a wireless signal for network access.
Position your modem router according to
• Place yo devices operate, and within line of sight to your wireless devices.
Hardware Setup User Manual12
ur modem router near the center of the area where your computers and other
the following guidelines:
• 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 walls and ceilings between 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, 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 User Manual13
Nighthawk AC1900 WiFi Cable Modem Router
Modem router
Power
Coaxial
adapte
Ethernet cable
cable

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
Note: Before you connect your modem router and contact your cable
Internet provider, 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. T
urn off existing modems and routers.
If you are replacing a modem that is currently connected in yo
ur home, unplug the
modem and plug the new modem router into the same outlet.
2. Connect a coaxial cable.
Use the coaxial cable that your cable compan
y provided to connect the cable port on the modem router to a cable wall outlet or a line splitter. Make sure that the cable is tightly connected.
Note: If Charte
r is your cable Internet service provider (ISP), Charter recommends connecting your modem router directly to a cable wall outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv. If Comcast Xfinity is your cable Internet provider, Comcast Xfinity recommends connecting your modem router directly to a cable wall outlet.
3. Connect th
e power adapter provided in the package to the modem router and plug the
power adapter into an electrical outlet.
Hardware Setup User Manual14
Nighthawk AC1900 WiFi Cable Modem Router
MAC address
Serial number
When the startup procedure is complete, the Power LED lights solid green.
4. W
ait for the modem router to come online.
When the modem router comes online, the Internet LED stops blinking and lights solid
reen.
g
This process might take up to 10 minutes.
Even though an Internet connection is established, Interne
t service is available only after you
set it up with your cable Internet provider.

Activate Your Internet Service

Before you activate your Internet service, gather the following information:
our cable Internet provider account information
• Y
• Modem rout
• Modem rout
• Modem rout
Your modem router’s serial number and MAC add
er model number, which is C7000v2
er serial number
er MAC address
ress are on the modem router label.
Hardware Setup User Manual15
To activate your Internet service:
1. V
isit your cable Internet provider’s website and follow the onscreen instructions to
activate your Internet service.
Cable ISP Contact Information
Cox
Mediacom https://support.mediacomcable.com
Optimum https://www.optimum.net/support/contact-us
https://www.cox.com/residential/support/home.html https://www.cox.com/activate 1-888-556-1193
1-855-Mediacom (1-855-633-4226)
https://install.optimum.com/JointInstall 1-877-810-6750
Nighthawk AC1900 WiFi Cable Modem Router
MAC address
Serial number
Cable ISP Contact Information
Sparklight https://support.sparklight.com
1-877-692-2253
Spectrum https://www.spectrum.net/contact-us
https://activate.spectrum.net 1-833-267-6094
Xfinity https://www.xfinity.com/internetsetup
Use the Xfinity app for Xfinity activation.
Note: Your cable Internet provider’s contact information might change. You
can also find the contact information in your monthly Internet service billing statement.
2. If you are unable to activate your Internet service using the instructions on your cable Internet provider’s website, call your cable Internet provider for support.

Activate Your Internet Service With Comcast Xfinity

Activate your Internet service by using Comcast Xfinity’s self-activation process. If you are unable to self-activate your modem router, call Comcast Xfinity customer service. After you complete the setup, perform a speed test.
Before you start the self-activation process, ga
• Xfinity acco
• The p
• Xfinity login
• Mod
• Mod
• Mod
em router model number, which is C7000v2
em router serial number
em router MAC address
unt number
hone number associated with your Xfinity account
information (your email address or user name and password)
Your modem router’s serial number and MAC a
ther the following information:
ddress are on the modem router label.
Hardware Setup User Manual16

Set Up and Activate Your Modem Router With Xfinity

1. If your current modem is leased from Xfinity, call Xfinity support to remove your leased modem from your Xfinity service.
2. Make sure that your mobile device is using an LTE Internet connection (do not connect to a WiFi network).
3. Open the Xfinity app and sign in with your Xfinity ID.
4. Follow the steps to get online.
5. The activation process takes about five minutes.
6. On your mobile device, launch a web browser and enter routerlogin.net or 192.168.0.1 in
the address field.
7. Follow the prompts to:
• Agree to the terms and conditions.
• Change your modem router’s admin credentials and set up security questions.
Review your WiFi network name and password.

Set Up Your Modem Router With Another Cable Internet Service Provider

1. Connect your computer or mobile device to the modem router with WiFi or Ethernet:
WiFi: Use the WiFi network name (SSID) and password on the modem router label to
connect.
Ethernet: Use an Ethernet cable to connect a computer to an Ethernet port on the modem router. (Your computer must have an Ethernet port.)
2. Launch a web browser and enter routerlogin.net or 192.168.0.1 in the address field.
3. Follow the prompts to:
• Agree to the terms and conditions.
• Change your modem router’s admin credentials and set up security questions.
• Review your WiFi network name and password.

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.
Hardware Setup User Manual17

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.
To disable NAT and connect your modem router to a router after installation and activation:
1. Connect a coaxial cable.
Use the coaxial cable that is provided by your cable company to connect the cable port on the modem router to a cable wall outlet.
Note: If Charter is your cable Internet service provider (ISP), Charter
recommends connecting your modem router directly to a cable wall outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv.
Make sure that the cable is tightly connected.
2. Connect the power adapter to the modem router and plug the power adapter into an electrical outlet.
The startup procedure takes about one minute. When the startup procedure is complete, the Power LED lights green.
3. On your WiFi-enabled computer or mobile device, find and select the WiFi network.
The WiFi network name is on the modem router label.
4. Join the WiFi network and enter the WiFi password.
The password is on the modem router label.
Your WiFi device connects to the WiFi network.
5. Launch a web browser.
6. Type http://routerlogin.net or http://192.168.0.1.
A login window opens.
7. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive.
8. When prompted, change the password and enter security questions and answers.
The BASIC Home page displays.
Hardware Setup User Manual18
Nighthawk AC1900 WiFi Cable Modem Router
9. Select ADVANCED > Administration > Router Mode.
The Router Mode page displays.
10. Select th
e No radio button.
With this setting, the modem router works as a bridge and the router behind it obtains a WAN IP address from the Internet service provider.
11. Click the Ap
ply button.
Your settings are saved.
Note: When your modem router is in bridge mode, use http://192.168.0.1 to
log in to your modem router.
12. Follow the instructions that came with your router to connect it to the modem router.
Hardware Setup User Manual19
2
2Connect 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
20

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.

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 is receiving power (its Power LED is lit).
2. Check the WPS instructions for your computer or wireless device.
3. Press the WPS button on the modem router.
4. Within two minutes, on your computer or WiFi device, press its WPS button or follow its
instructions for WPS connections.
Your computer or wireless device connects to the 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 wireless 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 wireless device connects to the WiFi network.
Connect to the Network and Access the Modem Router
User Manual21
Nighthawk AC1900 WiFi Cable Modem Router

Label

The label on the modem router shows the login information, MAC address, and serial number.
Figure 5. Modem Router label

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 password. Y network name (SSID) and password for wireless access. This information is on the modem router label.
Note: Your modem router
signals. The label shows the SSID for the 2.4 GHz signal. For information about 5 GHz WiFi settings, see on page 74.
• Modem router login.This log an Internet browser.
broadcasts dual-band 2.4 GHz and 5 GHz WiFi
our modem router is preset with a unique wireless
Specify Basic WiFi Settings
s you in to the modem router web interface as admin from

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. Laun
Connect to the Network and Access the Modem Router
ch a web browser from a computer or mobile device that is connected to the
modem router network.
User Manual22
Nighthawk AC1900 WiFi Cable Modem Router
2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Ente
r the modem router user name and password.
The user name is adm
in. The default password is password. The user name and
password are case-sensitive.
The first time you log in to the modem rou
ter, you are prompted to change the admin password and set up security questions. You must enter these settings before you can access the Internet.
4. Enter a new password.
5. Select securit
6. Click the Nex
y questions and enter the answers.
t button.
7. Click the Next button.
Connect to the Network and Access the Modem Router
User Manual23
The modem router connects to 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:
• Automatically repair common wireless network problems.
• Easily manage modem router features like 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 www.NETGEAR.com/genie.
2. Follow the onscreen instructions to install the app on your smartphone, tablet, or computer.
3. Launch the genie app.
The genie app dashboard page displays,
Connect to the Network and Access the Modem Router
User Manual24
3

3Specify 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
• Specify an IPv6 Internet Connection
• Change the MTU Size
25
Nighthawk AC1900 WiFi Cable Modem Router

Specify the Cable Connection Starting Frequency

The starting frequency is automatically generated. For most Internet connections, you do not need to specify this information. If you must enter a starting frequency, contact your Internet provider.
To change the starting frequency:
1. Laun
2. Enter http://routerlo
3. Enter
4. Select Cab
ch a web browser from a computer or mobile device that is connected to the
modem router network.
gin.net or http://192.168.0.1.
A login window opens.
the modem router user name and password.
The user name is ad password are case-sensitive.
The BASIC Home page displays.
le Connection.
min. The default password is password. The user name and
The page displays the status of all downstream and upstream channels.
5. In
the Starting Frequency field, enter a frequency.
6. Click the Appl
Your settings are saved.
Specify Your Internet Settings User Manual26
y button.
Nighthawk AC1900 WiFi Cable Modem Router

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 th process:
1. Scans
2. Obt
3. Conn
To view the status of the modem router initialization:
1. L
modem router network.
2. Ente
A login window opens.
3. Ente
The user name is adm password are case-sensitive.
The BASIC Home page displays.
4. Select Cable Connec
and locks the downstream frequency and then ranges the upstream channels.
ains a WAN address for the modem router.
ects to the Internet.
aunch a web browser from a computer or mobile device that is connected to the
r http://routerlogin.net or http://192.168.0.1.
r the modem router user name and password.
in. The default password is password. The user name and
tion.
e following steps in the provisioning
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
Specify Your Internet Settings User Manual27
Nighthawk AC1900 WiFi Cable Modem Router
Scroll to view more settings
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. NETGEAR recommends 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. Laun
2. Enter http://routerlo
3. Enter
4. Select A
ch a web browser from a computer or mobile device that is connected to the
modem router network.
gin.net or http://192.168.0.1.
A login window opens.
the modem router user name and password.
The user name is ad password are case-sensitive.
The BASIC Home page displays.
DVANCED > Setup > Internet.
min. The default password is password. The user name and
5. If your Internet connection requires an account name or host name, type it in the Account Name (If Required) field.
your Internet connection requires a domain name, type it in the Domain Name (If
6. If Required) field.
Specify Your Internet Settings User Manual28
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. Your ISP uses DHCP to assign your IP address. Your 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. For the Router MAC Address setting, select one of the following radio buttons:
• Use Default Address. Use the default MAC address.
• Use Computer MAC Address. The modem router captures and uses the MAC
address of the computer that you are now using. You must use the one computer that the ISP allows.
• Use This MAC Address. Enter the MAC address that you want to use.
10. Click the Apply button.
Your settings are saved.
If the NETGEAR website does not display within one minute, see Chapter 10, Troubleshooting.

Specify an IPv6 Internet Connection

To specify an IPv6 Internet connection:
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 user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive.
The BASIC Home page displays.
Specify Your Internet Settings User Manual29
Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Advanced Setup > IPv6.
If your Internet provider supports IIPV6, the System Delegated Prefix field displays IPv6 information.
pecify how the modem router assigns IPv6 addresses to the devices on your home
5. S network (the LAN) by selecting one of the following radio buttons:
• Use DHCP Server.
IPv6 systems might not support the DHCv6 client function.
• Auto Config. T
6. Complete
7. Click the Appl
Your settings are saved.
the fields in the Server Settings section.
y button.
This method passes more information to LAN devices, but some
his is the default setting.

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 packets travel through many devices along the way. If a device in the data path has a lower MTU setting than the other devices, the data packets must be split or “fragmented” to accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often th changing the value fixes one problem but causes another. Leave the MTU unchanged unless one of these situations occurs:
e default value. In some situations,
ou experience problems connecting to your ISP or other Internet service, and the
• Y technical support of either the ISP or NETGEAR recommends changing the MTU setting. These web-based applications might require an MTU change:
- A secure web
Specify Your Internet Settings User Manual30
site that does not open, or displays only part of a web page
- Yahoo email
Nighthawk AC1900 WiFi Cable Modem Router
- MSN port
- America Onlin
• Y
ou use VPN and experience severe performance problems.
ou used a program to optimize MTU for performance reasons, and now you are
• Y
al
e’s DSL service
experiencing connectivity or performance problems.
Note: An incorrect MTU setting can cause Internet communication
problems. For example, 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:
aunch a web browser from a computer or mobile device that is connected to the
1. L modem router network.
2. Ente
r http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Ente
r the modem router user name and password.
The user name is adm
in. The default password is password. The user name and
password are case-sensitive.
The BASIC Home page displays.
4. Select AD
VANCED > Setup > WAN Setup.
5. In the MTU Size field, enter a value from 64 to 1500.
6. Click the Ap
ply button.
Your change is saved.
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 value of 1500
Specify Your Internet Settings User Manual31
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