Xfinity Activation | Make Your Xfinity Activate Immediately

In order to set up your new XFINITY cable modem with the self- activation online by complying with these below steps. Find the suitable new XFINITY modem with the help of this blog. You will not need to contact Comcast Xfinity Activate.

XFINITY modems and WiFi routers can be rented from Comcast for a monthly fee. However, buying your own Comcast modem is much cheaper. See compatible modems here. Simply sort the list of XFINITY modems in the table below. Read also, Xfiniy bill pay and Xfinity Wifi not working detailed guide.

How do I activate a device on Xfinity?

When installing a new cable modem for the first time, the cable modem must be activated for Internet access. This document contains the following sections:

  1. Before installation
  2. installation
  3. Xfinity activation

Before installation – Find the information you need to enable Xfinity activate modem Internet service online:

  • Xfinity account number
  • Telephone number (linked to Xfinity account)

NOTE: The Xfinity account number can be found on your statement of account via the Xfinity app or the work order for the service requested by Xfinity. If you have previously created an Xfinity account, the user name or email address and password can be used for xfinity internet activation.

  • Switch off all existing routers and modems and pull out the mains plug.
  • Start a browser like Internet Explorer, Chrome or Safari and clear the browser cache.

Restart the computer with which you want to activate the device. For Comcast activate & Comcast activate modem info, explore the website.

Installation – Use an Ethernet cable that is directly connected to the cable modem from a computer, rather than wireless, to reduce activation problems.


NOTE: If the computer does not support an Ethernet connection, the wireless client can be used for xfinity activate new modem.

  • Make sure to check the coaxial cable whether it’s connected to the cable connector properly or not. If not then tighten it by hand.
  • Plug the power cord from the modem into the electrical outlet.
  • Let the modem turn on and run the startup sequence. The modem may restart a few times during this process.

Activation can take place when a solid green Internet LED is displayed on the modem. Visit official site for comcast activation number & xfinity activate cable box.

Xfinity Activation

Start a browser like Internet Explorer, Chrome or Safari. Type and press Enter to access the self-activation page.

NOTE: If the activation page does not load, ensure that the client device’s TCP / IP configuration is set to automatically obtain the DNS server address. You can find support with the TCP / IP configuration at the website of the official support. Also, you will find help for xfinity internet activation.

  1. Under Activation, click the corresponding activation URL
  2. Enter your Xfinity account number and phone number associated with the Xfinity account. If you previously created an online account, you can use your username or email address and password to continue with the activation steps.
  3. Follow the instructions and let the modem turn on completely. The front LEDs light up continuously when this state is reached. The modem may restart a few times during the activation process, which is normal.
  4. Activation is complete when a solid green Internet LED is displayed.

If a wireless computer is used for activation, it can temporarily lose the wireless connection and must reconnect to the wireless network. It is recommended to turn the WiFi setting off and on again to update the list of available WiFi networks.

If you have problems activating the modem on the self-activation page, contact Xfinity customer service for further assistance and provide the following information:

  • Modem manufacturer
  • Model number
  • Order number
  • HFC MAC address
  • EMTA MAC address (applies to voice services)

Where is Xfinity activation code?

The Activation Code screen appears on your Roku or a device connected to Roku. Go to from another device (e.g. a cell phone, tablet or desktop – not from your Roku). Enter the six-digit code provided by the Roku device into the web browser.

How do I activate my Comcast Xfinity modem?

Follow these simple steps to easily set up your new XFINITY cable modem.

How to attach Xfinity cable box and internet – Find your Comcast account number and phone number associated with your account. This is on your invoice. You many need this information.


Disconnect and remove old devices and connect a new modem

  • Disconnect all old devices. Only connect a new modem or gateway to the coaxial cable, the socket and the PC. After the modem itself has been activated, the router can be connected. Coaxial connections should be hand-tight to avoid signal loss.
  • Wait up to 10 minutes until the online display on the modem lights up green.
  • Open a web browser from a computer. The Comcast activation page should open automatically. If not, visit
  • Follow the on-screen instructions to begin activation. You will need your account information if you have not yet set up a username and password.

Xfinity modem activation not working

To find the best XFINITY modem and avoiding modem not working problem, you should be prepared for the following information.

Comcast Internet Tier – You can find this on your bill or visit your account online


Modem with WiFi or just a standard modem? – A modem-only model must be used with a separate router. Otherwise, it can only be used with a single device without wireless functions. A modem-router combination can be purchased. This enables the use of a combined unit and takes up less space.

Before you buy – Before you buy a new modem, think about future speed improvements that you may subscribe to.

How do I know if my modem is activated?

Wait for the modem to connect to the network (approximately two to five minutes). You know that there is a connection when the online status indicator on the front of the modem is solid. Now you can activate your new modem.

Xfinity activation number

During this national emergency, there is a high demand for new devices. Delivery of self-installation kits may take longer than expected. Set your communication settings so that you receive a confirmation and tracking number (s) when your device has shipped.

You can:

  • Activation an Xfinity modem for a new Internet service or as a replacement for an existing modem.
  • Activate your own modem for a new Internet service.
  • Activate your own modem as a replacement for an existing modem.
  • If you are using your own modem, make sure it is compatible with the Xfinity network and your Internet speed level.

Note: If you have an Xfinity Voice service, an Xfinity Voice modem is required. Visit official website for the easiest way to resolve the Xfinity outage issue.

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    Hi Dear, I'm Meenu, and I've written the posts on this blog. I've tried my best to pack them with helpful info to tackle any questions you might have. I hope you find what you're looking for here. Thanks for sticking around till the end!