Netgear C7000 Nighthawk Ac1900 Wifi Cable Modem Router User Manual

							Hardware Setup 
11  Nighthawk AC1900 WiFi Cable Modem Router
To cable your modem router:
1. Connect a coaxial cable.
Use the coaxial cable that your cable company provides to connect the cable port on the 
modem router to a cable wall outlet or a line splitter.
Note:For Xfinity cable Internet service, Comcast Xfinity recommends 
connecting your modem router to a cable wall outlet.
2. Connect the power adapter provided in the package to the modem router and plug the 
power adapter in to an electrical outlet.
3. Press the Power On/Off button on the rear panel of the modem router.
The Power LED lights green.
You can log in to the modem router to view or change its settings.
Cable Your Modem Router to a Router and Use Bridge Mode
If you want to cable the modem router to a router, then you must log in to the modem router 
and change its Router Mode setting. Changing this setting prevents certain network conflicts 
that can occur when two devices on the same network perform routing functions such as 
network address translation (NAT) and DHCP (assigning IP addresses to devices on the 
network). This turns the modem router into a bridged modem
To cable your modem router to a gateway or router:
1. Connect a coaxial cable.
Use the coaxial cable that your cable company provides to connect the cable port on the 
modem router to a cable wall outlet or a line splitter.
2. Connect the power adapter to the modem router and plug the power adapter into an 
electrical outlet.
The Power LED lights green.
3. On your computer or wireless device, find and select the WiFi network.
The WiFi network name is on the product label.
4. Join the WiFi network and enter the WiFi password.
The password is on the product label.
Your wireless device connects to the WiFi network.
5. Launch a web browser.
6. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays. 
						

							Hardware Setup 12
Nighthawk AC1900
 WiFi Cable Modem  Router 
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.
The BASIC Home screen displays.
8.  Select  ADV
 ANCED > Administration > Router Mode .
9.  Select the  No radio button.
With this setting, the modem router works as a bridge and obtains IP add\
resses from the 
cable Internet provider.
10.  Click the  Apply button.
Your change is saved.
11.  Follow the instructions that came with your router or gateway to connect\
 it to the modem 
router.
CAUTION:
Once the modem router is in bridge mode, you must connect only one 
device (your router) to a modem router LAN port. In most cases, Intern\
et 
service providers provide only one public IP address and connecting 
multiple devices will cause conflicts and will cause your devices to sto\
p 
working.
Set Up Your Internet Service with Comcast Xfinity
Set up 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.
Use Self-Activation to Set Up Your Internet Connection
Before you start the self-activation process, make sure that your accoun\
t number, account 
phone number, and login information (your email address or user name and password)\
 are 
nearby.
To set up your Internet connection with Comcast Xfinity’s self-activation process:
1. Close all web browsers. 
						

							Hardware Setup 13
 Nighthawk AC1900
 WiFi Cable Modem  Router
2. Launch a web browser.
You are redirected to the Xfinity self-activation page. If you are not re\
directed to the  Xfinity self-activation page, visit  www.comcast.com/activate.
3.  Provide your Xfinity credentials and complete the selfactivation process\
.
This process might take up to 15 minutes, during which the modem router \
reboots a  couple times.
Call Comcast Xfinity to Set Up Your Internet Connection
If you are unable to self-activate your modem router, call Comcast Xfinity customer service.
Before you call Comcast Xfinity, make sure that your account number, account phone 
number
 , email address, and password are nearby. The modem router’s model number is 
C7000. The serial number and MAC address are on the product label.
MAC address
Serial number
Figure 5. Find the serial number and the MAC address on the product labe\
l

To set up your Internet connection by calling Comcast Xfinity:
1.  Call Comcast Xfinity customer service at 1-800-XFINITY (1-800-934-6489)\
.
2.  When asked, provide your account information and provide the modem route\
r
 ’s model 
number and MAC address.
3.  W
ait for the Comcast Xfinity representative to confirm that your modem ro\
uter is active.
4. If you do not get an Internet connection with the modem router
 , ask the Comcast Xfinity 
representative to look for your modem router online, and do one of the f\
ollowing depending 
on what the representative tells you about your modem router:
• If the modem router is not visible, the Comcast Xfinity representative c\
an give you 
instructions to verify why the modem router does not connect with your h\
igh-speed 
Internet service.
• If the modem router is visible to the Comcast Xfinity representative, re\
boot the 
modem router

. Check your online status again. 
						

							14
2
2.   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  
						

							Connect to the Network and Access the Modem Router 
15  Nighthawk AC1900 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 has 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 has 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 has 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 16
Nighthawk AC1900
 WiFi Cable Modem  Router 
Label
The label on the modem router shows the login information, MAC address, \
and serial 
number.
MAC SerialWiFi network name
SSID) and password
Login information
(default access) address number
Figure 6. Modem router label
Types of Logins
Separate types of logins have different purposes. It is important that you understand the 
difference so that you know which login to use when. 
Types of logins: • W
iFi network key or password . Your modem router is preset with a unique wireless 
network name (SSID) and password for wireless access. This information is on the 
modem router label.
Note: Your modem router broadcasts dual-band 2.4 GHz and 5 GHz WiFi 
signals. The label shows the SSID for the 2.4 GHz signal. For 
information about 5 GHz WiFi settings, see  Specify Basic WiFi Settings 
on page   66.
• Modem Router login.This logs you in to the modem router interface as admin from an 
Internet browser

.
Log In to the Modem Router
When you first set up your modem router, NETGEAR genie automatically sta\
rts when you 
launch an Internet browser on a computer that is connected to the modem \
router. If you want 
to view or change settings for the modem router, you can use genie again\
.
To log in to the modem router:
1. Launch an Internet browser from a computer or wireless device that is co\
nnected to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com . 
						

							Connect to the Network and Access the Modem Router 
17  Nighthawk AC1900 WiFi Cable Modem Router
A login screen displays.
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 screen displays. 
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 Live Parental 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 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 screen displays: 
						

							18
3
3.   Specify Your Internet Settings
Usually, the quickest way to set up the modem router to use your Internet connection is to allow 
the genie 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:
•Notify Your Internet Provider 
•View Modem Router Initialization 
•Manually Set Up the Internet Connection 
•Specify an IPv6 Internet Connection 
•Change the MTU Size  
						

							Specify Your Internet Settings 
19  Nighthawk AC1900 WiFi Cable Modem Router
Notify Your Internet Provider
You must contact your Internet provider and tell them that you are using the modem router. 
For Comcast Xfinity self-activation, see 
Use Self-Activation to Set Up Your Internet 
Connection on page 12
To set up your Internet connection:
1. Contact your cable Internet provider and inform them that you are installing a new 
modem router that you bought from a retail store.
Provide your cable Internet provider with the modem router’s model number, which is 
C7000.
You can also visit your cable Internet provider’s website and follow the onscreen 
instructions to set up your Internet service.
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, which are on the 
product label. (See 
Retrieve and Display the Product Label on page 10.)
3. Wait for your cable Internet provider to confirm that your modem router is active.
4. If you the modem router does not connect to the Internet, ask your cable Internet provider to 
look for your modem router online, and do one of the following depending on what your 
cable Internet provider tells you about your modem router:
•If the modem router is not visible, your cable Internet provider can give you 
instructions to verify why the modem router does not connect with your high-speed 
Internet service.
•If the modem router is visible to your cable Internet provider, reboot the computer, 
laptop, or home gateway that is connected to the modem router. Try checking your 
online status again.
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 need to enter a starting frequency, contact your 
Internet provider.
To change the starting frequency:
1. Launch a web browser from a computer or wireless device that is connected to the 
network.
2. Type http://routerlogin.net or http://192.168.0.1.
A login screen displays.
3. Enter the modem router user name and password. 
						

							Specify Your Internet Settings 20
Nighthawk AC1900
 WiFi Cable Modem  Router 
The user name is  admin. The default password is password . The user name and 
password are case-sensitive.
The BASIC Home screen displays.
4.  Select  Cable Connection.
The screen displays the status of all downstream and upstream channels.
5.  In the Starting Frequency field, type a number
 . 
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 d\
etails 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 p\
rovisioning  process:
1.  Scans and locks the downstream frequency and then ranges the upstream ch\
annels.
2.  Obtains a W
 AN address for the modem router.
3.  Connects to the Internet.