Nighthawk AC1900 WiFi Cable Modem Router
Hardware Setup
User Manual
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5.
When asked, provide the modem router’s serial number and MAC address, which are on the
product label.
MAC address
Serial number
6.
Wait for your cable Internet provider to confirm that your modem router is active.
7.
If you do not get an Internet connection with the modem router, ask your cable Internet
provider to look for your modem router online, then do one of the following depending on
what your cable Internet provider tells you about your modem router:
•
If the modem router is not visible, your cable Internet provider 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 your cable Internet provider, reboot the modem
router. Check your online status again.
Activate Your Internet Service With
Comcast Xfinity
If you use Comcast Xfinity, you can set up 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. After you complete the setup, perform a speed test.
Before you start the self-activation process, make sure that your account number, account
phone number, and login information (your email address or user name and password) are
nearby.
Set Up and Activate Your Modem Router With Xfinity
1.
If your current modem is leased from Xfinity, call Xfinity support to remove your leased
modem from your Xfinity service.
2.
Make sure that your mobile device is using an LTE Internet connection (do not connect to a
WiFi network).
3.
Open the Xfinity app and sign in with your Xfinity ID.
4.
Follow the steps to get online.