1. Collect your Comcast XFINITY information.
Collect your Comcast XFINITY account number, account
phone number, and login information (your email
address or user name and password).
6. Connect a computer or mobile device to the
modem router.
To connect with WiFi, use the WiFi network name and
password on the modem router label.
Quick Start
Nighthawk X4
AC3200 WiFi Cable Modem Router
Model C7500
Package Contents
Modem router
Ethernet cable
Power adapter
2. Turn o existing modems and routers.
If you are replacing a modem that is currently
connected in your home, unplug the modem and plug
the new cable modem into the same outlet.
3. Connect a coaxial cable.
Use the coaxial cable that is
provided by Comcast XFINITY
to connect the cable port on
the cable modem to a cable wall
outlet.
Make sure that the cable is
tightly connected.
4. Connect the power adapter.
Connect the power adapter to the modem router and plug the
power adapter into an electrical outlet.
When the startup is complete, the Power LED
white. If the Power LED does not light, press the Power On/O
button.
5. Wait for the modem router to come online.
When the modem router comes online, the Internet LED
blinking and lights solid white.
This process might take up to 10 minutes.
lights solid
Modem router
45° 45°
Ethernet cable
stops
Cable wall
outlet
To connect using a wired connection, use an Ethernet
cable to connect a computer to an Ethernet port on the
modem router.
Reboot the computer.
Power
adapter
7. Log in to the modem router.
Launch a web browser and enter http://routerlogin.net
or http://192.168.0.1 in the address field of the web
browser.
When prompted to log in, enter admin for the user name
and password for the password, change the admin
password, and enter security questions and answers.
8. Activate your Internet service.
For information about how to activate your Internet service,
see Activate Your Internet Service on the other side of this
quick start guide.
Activate Your Internet Service
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. Aer 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 C7500
4. 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
For maximum Internet speed results, we recommend that you use a wired
gigabit-capable laptop during the speed test.
To determine the accurate Internet speed, visit
http://speedtest.xfinity.com/ and perform a speed test.
If your actual speed is lower than your subscribed speed, contact XFINITY.
Join the WiFi Network
WPS Method
For help with the WPS button on your computer or WiFi device, check the
instructions or online help that came with that computer or WiFi device. Some
older equipment cannot use WPS.
Note: WPS does not support WEP security. If you are using WEP security, use
the manual method.
1. Press the WPS button on the modem router for three to five seconds.
2. Within two minutes, on your WPS-enabled device, press its WPS button or
click its onscreen WPS button.
The WPS-enabled device connects to your modem router’s WiFi network.
3. Repeat this process to add other WPS-enabled devices to the network.
Support
• Modem router serial number
• Modem router MAC address
Your modem router’s serial number and MAC address are on the modem
router label.
¾ 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.
To connect your computer or mobile device (such as a smartphone or
gaming device) to your modem router’s WiFi network, you can use either
the manual method or the Wi-Fi Protected Setup (WPS) method.
Manual Method
1. On your WiFi-enabled computer or mobile device, open the WiFi
connection manager that manages your WiFi connections.
The WiFi connection manager scans for WiFi networks in your area.
2. Find and select your modem router’s WiFi network name (SSID).
The SSID is on the modem router label.
3. Enter the modem router’s password (or your custom password if you
changed it) to connect.
The password is on the modem router label.
4. Repeat Step 1 through Step 3 to connect other WiFi-enabled
computers or mobile devices.
Thank you for purchasing this NETGEAR product. You can visit
www.netgear.com/support to register your product, get help, access the latest
downloads and user manuals, and join our community. We recommend that you
use only ocial NETGEAR support resources.
If you are experiencing trouble installing your modem router, contact NETGEAR
at 1-866-874-8924.
For regulatory compliance information, visit
http://www.netgear.com/about/regulatory/.
See the regulatory compliance document before connecting the power supply.
Customer-owned modem routers might not be compatible with certain
cable networks. Check with your cable Internet provider to confirm that this
NETGEAR modem router is allowed on your cable network.
NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134, USA
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo
are trademarks of NETGEAR, Inc. Any non‑NETGEAR
trademarks are used for reference purposes only.
July 2017