Netgear C7100V Installation Manual
Support and Community
Modem router LEDs
Visit netgear.com/support to get your questions answered and access the latest
downloads.
You can also check out our NETGEAR Community for helpful advice at
community.netgear.com.
Customer-owned cable devices might not be compatible with certain cable
networks. Check with your cable Internet provider to conrm that this NETGEAR
cable device is allowed on your cable network.
If you are experiencing trouble installing your modem router, contact NETGEAR
at 1-866-874-8924.
Regulatory and Legal
For regulatory compliance information including the EU Declaration of Conformity, visit
https://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply.
For NETGEAR’s Privacy Policy, visit https://www.netgear.com/about/privacy-policy.
By using this device, you are agreeing to NETGEAR’s Terms and Conditions at
https://www.netgear.com/about/terms-and-conditions. If you do not agree, return the device to your
place of purchase within your return period.
Note to CATV system installer: This reminder is provided to call the CATV systems installer’s attention
to Section 820-93 of the National Electrical Code, which provides guidelines for proper grounding
and, in particular, species that coaxial cable shield shall be connected to the grounding system of the
building as close to the point of cable entry as practical.
LED Description
Power • Solid white: The modem router is receiving power and is functioning
Downstream/
Upstream
Online
2.4 GHz WiFi
5 GHz WiFi
Tel 1 and Tel 2
(voice ports)
Battery
normally.
• Off: The modem router is not receiving power.
• Solid red: The modem router is too warm and might overheat.
• Solid white: One or more downstream channels are locked.
• Slow blinking: Downstream locking is in progress.
• Fast blinking: Upstream locking is in progress.
• Off: No downstream channel is locked.
• Solid white: The modem router is online.
• Blinking: The modem router is synchronizing with the cable provider’s
cable modem termination system (CMTS).
• Off: The modem router is ofine.
• Solid white: The 2.4 GHz WiFi radio is functioning and available for use.
• Blinking: There is WiFi activity on the 2.4 GHz band.
• Off: The 2.4 GHz WiFi radio is disabled.
• Solid white: The 5 GHz WiFi radio is functioning and available for use.
• Blinking: There is WiFi activity on the 5 GHz band.
• Off: The 5 GHz WiFi radio is disabled.
• Solid white: The telephone line is provisioned and ready to use.
• Slow blinking: Registration is in progress for the telephone line, or the
phone is off the hook.
• Off: The telephone line is not registered or is not provisioned.
The battery is sold separately.
• Solid white: The battery is charged.
• Fast blinking: The battery power is low, or the modem router detected a
grounding error or a problem with the voltage.
• Off: No battery is installed or the battery is not working.
Quick Start
AC1900 WiFi Cable Modem Router
for XFINITY Internet and Voice
Model C7100V
Download the Nighthawk app to get started
For more information about the
Nighthawk app, visit Nighthawk-app.
com. Set up your modem router and
activate your Internet service with the
Nighthawk app.
Note: To activate your Xnity Internet and voice account, you must use the
Xnity app. To install your modem router, you can use the Nighthawk app
(recommended), or the modem router web interface.
WPS
button with LED
This button lets you use WPS to join the WiFi network without typing the WiFi
password. The WPS LED blinks during this process and then lights solid.
BEFORE RETURNING THIS PRODUCT TO THE STORE FOR
ANY REASON, call NETGEAR Technical Support at
1-866-534-9377 or visit
https://kb.netgear.com/000061156/How-can-Itroubleshoot-my-cable-modem.
Package contents
Option 2: install using the modem router web interface
Set up and activate your modem router
Modem
router
Power
cord
Phone
cable
Ethernet
cable
Start here
1. Download the Xnity app from the App store or from Google Play™. If you
already have the Xnity app, make sure you have the latest version.
For more information, visit https://www.xnity.com/internetsetup.
2. Collect your Xnity account information and this information from the
modem router label:
• Model number, which is C7100V
• Serial number
• MAC address
1. Turn off and disconnect existing modems and routers.
If you are replacing a modem that is currently connected in your home,
unplug the modem and plug the new modem router into the same outlet.
2. Use a coaxial cable to connect the cable port on the modem router to a cable
wall outlet.
Make sure that the cable is tightly connected.
We recommend connecting directly to the cable wall outlet.
If you must share the connection, use a 3.5dB (1 to 2) splitter.
3. If you have Xnity Voice, connect your phone to the Tel 1 port on the modem
router with the phone cable.
If you subscribed to two phone lines, connect the other phone to the Tel 2
port.
Note: The Tel 2 port only works for a two-phone line subscription.
4. Connect the power cord to the modem router and plug the power cord into a
power outlet.
The modem router might reset multiple times when it is powered on.
Optional
phone
1. If your current modem is leased from Xnity, call Xnity support to remove
your leased modem from your Xnity service.
2. Make sure that your mobile device is using an LTE Internet connection (do not
connect to a WiFi network).
3. Open the Xnity app and sign in with your Xnity ID.
4. Follow the steps in the Xnity app to get online.
5. The activation process takes about 5 minutes.
6. On your mobile device, launch a web browser and enter routerlogin.net or
192.168.0.1 in the address eld.
7. Follow the prompts to:
• Agree to the terms and conditions.
• Change your modem router’s admin credentials and set up security
questions.
• Review your WiFi network name and password.
• MTA MAC address
Option 1: install using the Nighthawk app
1. Make sure that your mobile device is using an LTE Internet connection (do not
connect to a WiFi network).
2. Open the Nighhawk app.
3. Follow the steps in the app to connect your modem router.
4. You must activate your modem router with Xnity. See Set up and activate
your modem router.
5. Wait for the Online LED
to light solid white.
This process might take up to 10 minutes.
Note: If after 10 minutes, the LED is still not solid white, verify that the cable
outlet is working, or contact Xnity to make sure you have a connection.
6. You must activate your modem router with Xnity. See Set up and activate
your modem router.
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any
non-NETGEAR trademarks are used for reference purposes only.
January 2021
NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134, USA
NETGEAR INTERNATIONAL LTD
Floor 1, Building 3
University Technology Centre
Curraheen Road, Cork,
T12EF21, Ireland
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