AC3200 WiFi Cable Modem Router
Model C7800
Package Contents
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).
2. Turn off 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.
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 lights solid white.
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.
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