NETGEAR Nighthawk C6900 Quick Start Manual page 11

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.
4. If you are unable to activate your modem router using the
XFINITY self-activation process, call Comcast XFINITY customer
service at 1-800-XFINITY (1-800-934-6489) and do the
following:
a. When asked, provide your account information and provide
the modem router's model number and MAC address, which
are on the modem router label.
b. Wait for Comcast XFINITY to confirm that your
modem router is active.
c. If you do not get an Internet connection with the
modem router, ask Comcast XFINITY to look for your
modem router online, and do one of the following
depending on what Comcast XFINITY tells you about your
modem router:
• If the modem router is not visible, Comcast XFINITY can
give you instructions to verify why the modem router
does not connect with your high-speed Internet service.
• If the modem router is visible to Comcast XFINITY,
reboot the modem router. Check your online status
again.
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