How to Fix Blinking White Light Xfinity Modem Issue?

If white light is constantly blinking on your Xfinity modem, then that can be a result of internet connection problems. This is a common problem and a lot of users are experiencing this problem nowadays. If you are also bothered by this problem, then read the guide below.

Here, you will read different solutions that can help you troubleshoot this problem easily. Before we discuss the solutions, let's first talk about what causes blinking white light on Xfinity modem.

Causes Blinking White Light on Xfinity Modem

You may see a blinking white light on your Xfinity modem if there is a temporary outage. An outdated firmware can also lead to this problem. Device overheating can also result in Xfinity modem blinking white light issue. Router overloading and weak signal strength can also contribute to this problem.

Different Methods to Fix Xfinity Modem Blinking White Light Problem

Below, we have stated different solutions that can help you get rid of internet connectivity issues on Xfinity modem.

1) Complete Gateway Activation

Did you recently install or reset your Xfinity router, then you need to complete the process to activate it and ensure that there is a stable internet connection. To complete the activation process, you need to first download and install the Xfinity app on your smartphone. Launch the app and then log in by entering your username and password. After logging in, scan the QR code on your router. If you still can't scan, then type-in the CM MAC number.

2) Power Cycle Your Router

If there are any temporary software issues, then they can be resolved by performing a power cycle on your modem or router. Below are the steps that you need to carry out to power cycle your router.

Step 1: First of all, you need to disconnect the router from the electrical outlet.

Step 2: Keep the router disconnected for the next 30 seconds and allow it to clear the memory.

Step 3: Reconnect your router to the electrical outlet and wait for it to restart.

3) Update the Firmware of Your Xfinity Modem

White blinking light issue can also occur if the firmware of our router is outdated. In order to resolve this problem, you need to update the firmware of your router. Below, we have mentioned the steps that you need to perform to update the firmware of your router.

Step 1: First of all, log into the web-based setup page of your router.

Step 2: Go to the Settings menu and search for the option of firmware update.

Step 3: If you find that the updates are available, then begin with the update process.

4) Reset the Router

If none of the above-mentioned solutions help you resolve your problem, then carry out the steps mentioned below to reset your router.

Step 1: Start looking for the reset button on the back of your router.

Step 2: Take a pin and use it to press the reset button. Press and hold the button for 15 seconds.

Step 3:  Leave the button and then your router will restart.

Step 4: Now, you need to reconfigure your router because all the save settings are gone.

5) Check if Your Device is Overheating

If your modem or router is overheating, then that may also lead to blinking white light problem. Overheating issue can occur because of bad ventilation or placement of your router unit in a heated area. To troubleshoot this problem, place it in a properly ventilated area and ensure that it is far away from heated sources.  If your router is overheated, the power it off and then allow it to cool off.

6) Cable Inspection

Loose or damaged wires can also cause internet connection issues. In order to fix this problem, you need to ensure that the wires are securely connected and there are no signs of damage. If you see that the wires are loosely connected, then tighten the wires to secure the connection. If the wire is damaged from somewhere, then get the wire replaced to fix your problem.

7) Check Router Overloading

There is a limitation on the number of devices that you can connect to your router. Therefore it is always advisable to disconnect the devices that are presently not in use. If you live in a big house, then it is advisable to use a Mesh Wi-Fi system that can help you distribute the load of network evenly.

8) Clone the Mac Address Manually

Search for a device that is connected to the internet and note the Mac address of network connection. Now, you need to type the Mac address settings in the appropriate section.

9) Get in Touch With Customer Support Executives

If none of the solutions you applied before are working, then the only option you have is to get your problem resolved by contacting customer support executives. Intimate them about the already applied solutions so they can know what has not worked so far. The technicians will inform you about the necessary steps that you need to take to fix the problem.


So, these are the list of solutions that you can apply to fix Xfinity modem blinking white light problem. Your issue will probably get resolved after applying the solutions we have stated above and then you can continue doing what you were before you got interrupted by the blinking white light problem.

Frequently Asked Questions

Q1. Why is My Xfinity Pod Blinking White Light?

Ans: If your Xfinity pod is blinking white light, then this is probably happening because your router's wires are loosely connected or there is device overheating.

Q2. How to Restart Xfinity Modem White?

Ans: Disconnect it from the power source and reconnect it after a while.

Q3. How to Manually Reset Xfinity Router?

Ans: To manually reset Xfinity router, you need to press the reset button.