NETGEAR C7800 User Manual
1. Collect your cable Internet provider information.
Collect your cable account number, account phone
number, and login information (your email address or
user name and password).
6. Connect a computer or mobile device to the
modem router.
To connect with WiFi, use the WiFi network name and
password on the modem router label.
Quick Start
AC3200 WiFi Cable Modem Router
Model C7800
Package Contents
Modem router
Ethernet cable
Power adapter
2. Turn o existing modems and routers.
If you are replacing a modem that is currently
connected in your home, unplug the modem and plug
the new cable modem into the same outlet.
Cable wall outlet
3. Connect a coaxial cable.
Use a coaxial cable that is
provided by your cable company
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 Comcast XFINITY is your
cable Internet provider, Comcast
XFINITY recommends connecting your modem router
directly to a cable wall outlet.
4. Connect the power adapter.
Connect the power adapter to the modem router and plug the
power adapter into an electrical outlet.
When the startup procedure is complete, the Power LED
solid white.
5. Wait for the modem router to come online.
When the modem router comes online, the Internet LED
blinking and lights solid white.
This process might take up to 10 minutes.
Coaxial cable
(not included)
lights
stops
Modem router
45° 45°
Ethernet cable
7. Log in to the modem router.
8. Activate your Internet service.
To connect using a wired connection, use an Ethernet
cable to connect a computer to an Ethernet port on the
modem router.
Reboot the computer.
Power adapter
Launch a web browser and enter http://routerlogin.net
or http://192.168.0.1 in the address field of the web
browser.
When prompted, enter admin for the user name and
password for the password.
For information about how to activate your Internet service,
see Activate Your Internet Service on the other side of this
quick start guide.
Activate Your Internet Service
¾ To activate your Internet service:
1. Visit your cable Internet provider’s website and follow the onscreen
instructions to activate your Internet service.
Cable Internet Provider Contact Information
Bright House Networks
Cablevision
Comcast XFINITY
Cox
Mediacom
Time Warner Cable
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 and do the following:
http://support.brighthouse.com
1-866-898-9101
http://www.cablevision.com
https://install.optimum.com/JointInstall/
Telephone number depends on your region.
http://www.comcast.com/activate
http://www.xfinity.com/internetsetup
http://www.xfinity.com/internetsupport
1-800-XFINITY (1-800-934-6489)
https://activation.cox.net/selfactivation/start.cox
1-888-556-1193
https://maestro.mediacomcc.com/walledgarden/page/
login.jsp
1-844-2SIMPLE (1-844-274-6753)
https://elb02.activatemymodem.com/authentication
1-800-892-2253
a. When asked, provide your account information and provide the
modem router’s model number, which is C7800, serial number, and
MAC address.
The serial number and MAC address are on the modem router label.
b. Wait for your cable Internet provider to confirm that your
modem router is active.
c. If you do not get an Internet connection with the modem router,
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 modem router. Check your online status again.
Join the WiFi Network
To connect your computer or mobile device (such as a smartphone or
gaming device) to your modem router’s WiFi network, you can use either
the manual method or the Wi-Fi Protected Setup (WPS) method.
Manual Method
1. On your WiFi-enabled computer or mobile device, open the WiFi
connection manager that manages your WiFi connections.
The WiFi connection manager scans for WiFi networks in your area.
2. Find and select your modem router’s WiFi network name (SSID).
The SSID is on the modem router’s label.
3. Enter the modem router’s password (or your custom password if you
changed it) to connect.
The password is on the modem router’s label.
WPS Method
For help with the WPS button on your computer or WiFi device, check the
instructions or online help that came with that computer or WiFi device. Some
older equipment cannot use WPS.
Note: WPS does not support WEP security. If you are using WEP security, use
the manual method.
1. Press the WPS button on the modem router for three to five seconds.
2. Within two minutes, on your WPS-enabled device, press its
WPS button or click its onscreen WPS button.
The WPS-enabled device connects to your modem router’s WiFi network.
3. Repeat this process to add other WPS-enabled devices to the network.
Support
Thank you for purchasing this NETGEAR product. You can visit
www.netgear.com/support to register your product, get help, access the latest
downloads and user manuals, and join our community. We recommend that you
use only ocial NETGEAR support resources.
If you are experiencing trouble installing your modem router, contact NETGEAR
at 1-866-874-8924.
For regulatory compliance information, visit
http://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply.
Customer-owned modem routers might not be compatible with certain
cable networks. Check with your cable Internet provider to confirm that this
NETGEAR modem router is allowed on your cable network.
4. Repeat Step 1 through Step 3 to connect other WiFi-enabled
computers or mobile devices.
NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134, USA
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo
are trademarks of NETGEAR, Inc. Any non‑NETGEAR
trademarks are used for reference purposes only.
December 2016
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