Netgear C6900 High Speed 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.
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.
For XFINITY cable Internet service, Comcast XFINITY recommends connecting your 
modem router to a cable wall outlet.
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 window opens.
7. Enter the modem router user name and password. 
						

							Hardware Setup 12
Nighthawk AC1900
 WiFi Cable Modem  Router 
The user name is  admin. The user name and password are case-sensitive.
The BASIC Home page 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.
Activate Your Internet Service
To activate your Internet service:
1. Contact your Internet provider
 .
2.  Check with your cable Internet provider to confirm that this modem route\
r is allowed on your 
cable network.
This modem router might not be compatible with certain cable networks.
3.  If this modem router is allowed on your cable network, inform your cable\
 Internet provider 
that you are installing a new modem router that you bought from a retail\
 store.
4.  Provide your cable Internet provider with the modem router
 ’s model number, which is 
C6900.
For information about Comcast self-activation, see Comcast Self-Activati\
on on page 8. 
						

							Hardware Setup 13
 Nighthawk AC1900
 WiFi Cable Modem  Router
Note: You can visit your cable Internet provider’s website and follow the 
onscreen instructions to activate your Internet service.
Cable Internet 
ProviderContact Information
Bright House 
Networks support.brighthouse.com
1-866-898-9101
Cablevision http://www.cablevision.com
https://install.optimum.com/JointInstall/
Telephone number depends on your region. Note:  When you attempt to contact Cablevision online, you are 
directed to the Optimum web page. Optimum is a brand name of 
Cablevision.
Charter https://install.charter.com/
1-855-757-7328
Comcast XFINITY https://www.comcast.com/activate
http://www.xfinity.com/internetsetup
http://www.xfinity.com/internetsupport
1-800-XFINITY (1-800-934-6489)
For more information, see Activate Your Internet Service With Comcast 
XFINITY on page 14.
Cox https://activation.cox.net/selfactivation/newmodem.cox
1-888-556-1193
Mediacom https://maestro.mediacomcc.com/walledgarden/page/login.jsp
1-844-2SIMPLE (1-844-274-6753)
Time Warner Cable 1-800-892-2253
https://www.timewarnercable.com/en/support/internet/step-by-step/mo
dem-activation.html
Note:Your cable Internet provider’s contact information might change. You \
can also find the contact number in your monthly Internet service billin\
g 
statement. 
						

							Hardware Setup 14
Nighthawk AC1900
 WiFi Cable Modem  Router 
5. When asked, provide the modem router’s serial number and MAC address, which are on the 
product label.
6.  W
ait for your cable Internet provider to confirm that your modem router i\
s active.
7. If you do not get an Internet connection with the modem router
 , ask your cable Internet 
provider to look for your modem router online, then do one of the follow\
ing 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 giv\
e 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 your cable Internet provider
 , reboot the modem 
router. Check your online status again.
Activate Your Internet Service With Comcast XFINITY
If you use Comcast XFINITY, you can set up Internet service by using Comcast XFINITY’s 
self-activation process. If you are unable to self-activate your modem r\
outer, call Comcast 
XFINITY customer service. After you complete the setup, perform a speed test.
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 activate your Internet connection with Comcast XFINITY’s self-activation process:
1.  Close all web browsers.
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 self-activation proces\
s.
This process might take up to 15 minutes, during which the modem router \
reboots a  couple of times.
4.  If you are unable to activate your modem router using the XFINITY self-a\
ctivation process, 
call Comcast XFINITY customer service at 1-800-XFINITY (1-800-934-6489)\
:
MAC address
Serial number 
						

							Hardware Setup 
15  Nighthawk AC1900 WiFi Cable Modem Router
a.When asked, provide your account information and provide the modem router’s 
model number and MAC address, which are on the product label.
b. Wait for Comcast XFINITY to confirm that your modem router is active.
c. If you do not get an Internet connection with the modem router, ask Comcast 
XFINITY to look for your modem router online, and do one of the following 
depending on what Comcast XFINITY tells you about your modem router:
•If the modem router is not visible, Comcast XFINITY 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 Comcast XFINITY, reboot the modem router. 
Check your online status again. 
						

							16
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 
17  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 18
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 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   47.
• 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 connect to the network (either with WiFi or with an Ethernet c\
able), 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 WiFi-enabled computer or mobile device that \
is 
connected to the network.
2.  T
ype  http://routerlogin.net  or http://192.168.0.1.
A login window opens. 
						

							Connect to the Network and Access the Modem Router 19
 Nighthawk AC1900
 WiFi Cable Modem  Router
3. Enter the modem router user name and password.
The user name is  admin. 
 The user name and password are case-sensitive.
The first time you log in to the modem router, 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 security questions and enter the answers.
6.  Click the  Next button.
7.  Click the  Next button.
The modem router connects to the Internet. The BASIC Home page displays the status of  the Internet connection.  
						

							Connect to the Network and Access the Modem Router 
20 Nighthawk AC1900 WiFi Cable Modem Router 
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 page displays: