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Hardware and Internet Setup
11
High Speed Cable Modem
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.
If you are unable to activate your modem router using the XFINITY self-activation
process, call 1-855-OK-BEGIN (1-855-652-3446) or 1-800-XFINITY (1-800-934-6489).
Perform a Speed Test
To determine the accurate Internet speed, visit the speed test website of your cable Internet
provider and perform a speed test.
If your actual speed is lower than your subscribed speed, contact your cable Internet
provider.
Connect Your Cable Modem to a Router After Installation
and Activation
During the installation and activation, you must connect the cable modem directly to a
computer. After installation and activation, you can connect the cable modem to a router.
Router
Cable modem
Coaxial cable to
Ethernet cable
Power adapter
Computer
cable outlet
Figure 6. Connect the cable modem to a router
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