Xfinity Cable Box Not Working: [Solved]

After using the Xfinity cable box for a while, I’ve noticed that it struggles to keep the signal. This will simply not do when I’m trying to unwind on my couch while watching my favorite TV shows.

Xfinity Cable Box Not Working
Xfinity Cable Box Not Working

I’ve spent hours searching online for solutions to this problem. A simple restart usually restores the signal. This article contains a step-by-step guide on how to repair your Xfinity mobile Cable Box. In this scenario, you will understand the first steps you must take.

Xfinity Cable Box Not Working, restart the Comcast cable box if your Xfinity mobile s Cable Box isn’t working. If this does not work, proceed to factory reset the Xfinity cable box. I’ve also discussed using the Xfinity My Account App, the restore default option, and calling Comcast Tech Support to reset your cable box.

Troubleshooting: Issues on Xfinity Cable Box Not Working

The cable box is not turned on.Make sure the cable box is turned on. The power button is usually located on the front of the cable box.
The cable box is not properly connected to the TV.Make sure the cable box is properly connected to the TV using the HDMI or component cables.
The cable box is not receiving a signal from the cable line.Check the connections at the wall outlet and the cable box. If the connections are secure, contact your cable provider to troubleshoot the issue.
The cable box is experiencing a software problem.Restart the cable box by pressing and holding the power button for 10 seconds. If the cable box still does not work, you can try resetting the cable box to factory defaults.
The cable box is defective.If you have tried all of the above steps and the cable box still does not work, it may be defective. Contact your cable provider to request a replacement cable box.

Video: How to Reset your Comcast Xfinity TV Cable Box 

Reset your Comcast Xfinity TV Cable Box 


If the Power Light on your Comcast Cable Box isn’t glowing, try unplugging and reconnecting the power cable. If this fails, you may need to reset your Comcast Digital Adapter. I’ve included a section below that explains how to reset your Comcast Digital Adapter.

Xfinity Cable Box Reset vs. Restart

You can repair your Xfinity Cable Box in two ways: reset or restart. Most errors can be resolved simply by restarting the computer. Restarting the Xfinity Cable Box will result in a system refresh while retaining all previously saved data.

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Xfinity Cable Box Not Working

If restarting does not work, you can reset your Xfinity Cable Box. A factory reset clears all previous data and returns the device to its factory settings. If you don’t mind losing saved data, such as recorded programs, use this method.

Start your Xfinity Cable TV Box again.

There are three ways to restart your Xfinity Cable box. I’ll take you through each one step by step.

Start your Xfinity Cable TV Box again.
Start your Xfinity Cable TV Box again.

Use the Comcast Cable Box’s Power Button

This is the first step to regaining your signal. You only need to turn off the streaming device.

If your Xfinity Remote does not turn off your TV Box, follow these simple steps:

  • On your Xfinity Cable Box, look for the Power button.
  • Hold the button down for 10 seconds.
  • The device will then restart automatically.

Disconnecting the Xfinity Cable Box

You can restart your device by unplugging it from the outlet. To restore the signal on the cable box, follow these steps:

  • Turn off the Xfinity Cable Box.
  • Unplug the device from the power source.
  • Wait 10 seconds before reconnecting it to the outlet.
  • Click the Power button.
  • Your device will then restart automatically.
  • Using the Help Menu on Xfinity Cable Box

This method can be used to restart the cable box if you have an Xfinity remote.

  • Find the A button on your Xfinity remote. To access the Help Menu, press it.
  • Choose Restart and then press OK.
  • At this point, you will receive a confirmation message. Select Restart and press OK.
  • Your device restart will then take a few minutes.

Factory Reset Your Xfinity Cable Box Data will be lost if the Xfinity Cable box is the factory reset. It is preferable to proceed with this option after you have exhausted all other restarting options.

The “My Account” app from Xfinity is available for both iOS and Android. You can easily perform a factory reset on your smartphone by downloading it.

To perform a factory reset with the app, follow these steps:

  • Launch the Xfinity My Account App on your smart device.
  • The TV option can be found in the Overview Menu.
  • Choose the device you want to troubleshoot.
  • Select Troubleshoot, then Continue Now, and then System Refresh to reset. Cable Box Xfinity
  • Using the Restore Default option

If you don’t want to use the app, you can use the remote to perform a factory reset.

To finish it, follow these steps:

  • Keep your cable box’s power button depressed. Check that the device is turned on, as indicated by blinking green lights.
  • Now, on your remote, press the Power and Menu buttons together to access the User Settings.
  • To find the Restore Defaults option, use the Up and Down arrows together.
  • To begin the resetting process, click the Right button and then press OK.

Contact Comcast Tech Support.

If you are still unable to get a signal on your Xfinity Cable Box, you will require professional assistance. From your phone, dial the Customer Service number.

During business hours, dial 1-800-Comcast or 1-800-266-2278 and provide the technician with your customer account number and the nature of the problem.

The technician will then use their own computer to perform a signal reset. This will bring your device up to date. This procedure can take a few minutes.


I’ve gone over every method you can use to get the signal back on your Xfinity Cable TV Box, including restarting and resetting it.

Perhaps your Xfinity Cable Box is operational, but your Xfinity Remote is not. If this is the case, you should try Resetting your Xfinity Remote.


It is best to use the reset option only after you have exhausted all other restart methods because it causes you to lose previously saved data.

If none of the reset or restart methods work, it is best to contact Customer Service and get assistance from a technician to solve your problem.

If you’re tired of troubleshooting and want to see what else is available, remember to follow the Xfinity Early Termination procedure to avoid cancellation fees in the Xfinity store.


If your Xfinity cable box isn’t working—that is, the lights are turned off and no one is home—your own troubleshooting steps and those in this article are unlikely to work. However, it’s worth a shot to get your system up and running again. If all else fails, a technician will be required to repair it, and it is unlikely that it will be charged to your account.


My Xfinity cable box is not working. What should I do?First, try restarting your cable box by pressing and holding the power button for 10 seconds. If that doesn’t work, check the cables to make sure they are tightly connected. You can also try resetting your modem and router. If you’ve tried all of these things and your cable box is still not working, you may need to contact Xfinity customer support.
Why is my Xfinity cable box not showing any channels?There are a few reasons why your Xfinity cable box might not be showing any channels. First, check to make sure that you have an active subscription to Xfinity TV. You can also check to see if there is an outage in your area. If you’ve checked these things and your cable box is still not showing any channels, you may need to contact Xfinity customer support.
How do I reset my Xfinity cable box?To reset your Xfinity cable box, press and hold the power button for 10 seconds. The cable box will then restart.
How do I activate my Xfinity cable box?To activate your Xfinity cable box, you will need to go to the Xfinity website and enter your account information. You will also need to provide the serial number of your cable box. Once you have activated your cable box, you will be able to start watching TV.

How do you reactivate your Xfinity cable box?

Make sure your cables are securely fastened. For 10 seconds, press and hold the Power button on the front of the primary DVR TV Box. The TV Box should restart automatically.

What is the best way to get a signal on my Comcast cable box?

Check that all power cables for the TV and your X1 TV Box are plugged into working power outlets. Tighten all cable connections by hand to ensure they are not loose. If you’re using an HDMI cable to connect the X1 TV Box to the TV, make sure it’s properly plugged in. Turn on the TV and the X1 TV Box.

How do I reactivate my cable box?

Reboots frequently resolve problems by resetting the box and its cable connection. To reboot, unplug the cable box from power for approximately 30 seconds, either from the back of the box or from the power outlet on your wall or power strip, and then plug it back in. This will start the boot-up procedure.

Why is my Xfinity box stuck on the boot screen?

Occasionally, the box will become stuck while booting. It’s a good idea to restart the process to see if things improve. Simply unplug the power inlet from the box and plug it back in. Check that the cables are properly reconnected and tied before restarting.


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