Hardware Setup
13
AC3200 WiFi Cable Modem Router
If the Power LED does not light, press the Power On/Off button on the rear panel of the
modem router.
3. 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.
Even though an Internet connection is established, Internet service is available only after you
set it up with your cable Internet provider
.
For information about how to activate your Internet service, see Activate Your Internet
Service With Comcast XFINITY on page 13.
Activate Your Internet Service With Comcast XFINITY
Activate your Internet service by using Comcast XFINITY’s self-activation process. If you are
unable to self-activate your modem router, call Comcast XFINITY customer service. After you
complete the setup, perform a speed test.
Before you start the self-activation process, collect the following information:
• XFINITY account number
• The phone number associated with your XFINITY account
• XFINITY login information (your email address or user name and password)
• Modem router model number
, which is C7800
• Modem router serial number
• Modem router MAC address
Your modem router’s serial number and MAC address are on the modem router label.
MAC address
Serial number
To set up 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 redirected to the
XFINITY self-activation page, visit http://www.comcast.com/activate.
3. Provide your XFINITY credentials and complete the self-activation process.
This process might take up to 15 minutes, during which the modem router reboots twice.
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