Quick Start
Package Contents
AC3200 WiFi Cable Modem Router
Model C7800
45° 45°
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).
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 is complete, the Power LED
lights solid white.
If the Power LED does not light, press the Power On/O button.
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
your new modem router into the same outlet.
5. Wait for the modem router to come online.
When the modem router comes online, the Internet LED
stops
blinking and lights solid white.
This process might take up to 10 minutes.
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.
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.
7. Log in to the modem router.
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 to log in, enter admin for the user name
and password for the password, change the admin
password, and enter security questions and answers.
8. Activate your Internet service.
For information about how to activate your Internet service,
see Activate Your Internet Service on the other side of this
quick start guide.
Ethernet cable
Power adapter
Modem router
Modem router
Ethernet cable
Power adapter
Coaxial cable
(not included)
Cable wall outlet
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