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....

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...

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...

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...

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...

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...

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...

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...

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...