NETGEAR CM500 User Manual page 8

Note: Before you connect your cable modem and contact Comcast Xfinity to
set up your Internet service, collect your Comcast account number,
account phone number, and login information (your email address or
user name and password).

To connect your cable modem directly to a computer:
1. Connect a coaxial cable.
Use the coaxial cable that Comcast Xfinity provided to connect the cable port on the cable
modem to a cable wall outlet. Make sure that the cable is tightly connected.
2. Turn off the computer to which you intend to connect the cable modem.
3. Use the Ethernet cable provided in the package to connect the Gigabit Ethernet port on the
cable modem to an Ethernet port on the computer.
4. Turn on the computer.
5. Connect the power adapter provided in the package to the cable modem and plug the power
adapter into an electrical outlet.
When the startup procedure is completed, the Power LED lights green
6. Wait for the cable modem to come online.
It might take up to 10 minutes for the cable modem to come online on the network. During
this time, the LED behavior is as follows:
• The Downstream LED lights amber
• The Downstream LED lights green
locked.
• The Upstream LED lights amber
• The Upstream LED lights green
• After the cable modem registers with Comcast Xfinity, the Internet LED lights
green .
Even though an Internet connection is established, Internet service is available only after you
set it up with Comcast Xfinity.
For information about how to set up your Internet service, see
with Comcast Xfinity
CM500 High Speed Cable Modem
on page 9.
Hardware and Internet Setup
when one downstream channel is locked.
when more than one downstream channel is
when one upstream channel is locked.
when more than one upstream channel is locked.
Set Up Your Internet Service
8
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