How to Fix ‘US/DS Light Blinking’ on Xfinity Internet Connection

Xfinity is a trading name for the Comcast Cable communications which is one of the largest ISPs in the USA. The company has been around for more than 50 years and has the second-largest cable network in the world. However, quite recently, a lot of reports have been coming in where users are unable to connect to the internet and the “US/DS light” on their routers is blinking.

US/DS light Blinking
US/DS light Blinking

When the light is stable it means that the connection is established and the internet access is granted. However, when the light is blinking it means the connection isn’t being established properly. Also, keep in mind that the light flashes continuously during a firmware update. In this article, we will provide you viable solutions to fix this issue and also inform you of the reasons due to which this error is triggered.

What Causes the US/DS light to Blink on Xfinity Internet Connection?

After receiving numerous reports from multiple users, we decided to investigate the issue and devised a set of solutions that eradicated the issue for most of our users. Also, we looked into the reasons due to which it is triggered and listed them below:

  • Splitter Issue: Most connections use a splitter that divides the incoming connection into 3. The splitter provides the connection to the TV, Phone and the Wifi Modem. If this splitter isn’t working properly or has been damaged it can end up preventing the connection.
  • Service Outage: In some cases, there is a service outage on the ISP’s end due to which the lights on the US/DS indicator are blinking. You can always check for any pre-scheduled service outages or current service outages through the company’s website.
  • Defective Modem: It is possible that the Xfinity modem you are using is defective and is causing this particular issue. Sometimes, due to power surges, the modem can lose some of its functionality and this can prevent the internet connection from being established.
  • Loose Wires: Make sure that all the wires are connected to the modem properly in their appropriate slots. Sometimes, a loose cable can end up preventing the internet connection.

Now that you have a basic idea of the nature of the problem, we will move on towards the solutions. Make sure to implement these in the specific order in which they are presented.

Solution 1: Reinitializing Internet Modem

The most basic troubleshooting step that you can take while trying to fix this problem is to completely reinitialize the device by power cycling it. For that:

  1. Unplug the power from your Internet Router.
    Unplugging from the socket
  2. Press and hold the “Power” button on your Internet Router.
  3. Plug the power back in and wait for internet services to start.
    Plugging the power back in
  4. Check to see if the issue persists.

Solution 2: Plugging Directly

In some cases, the Splitter used to split the internet cable might be defective and it might be preventing the connection from being established. Therefore, it is recommended to connect the cable directly into the internet modem and check to see if the issue persists. If it goes away, it means that the splitter being used wasn’t working properly.

Solution 3: Contact Customer Support

If the issue still persists after trying the basic troubleshooting methods indicated above, it means that the problem is probably on the ISPs end. Therefore it is recommended to contact your ISP and have them send in a technician to find and rectify the problem.

ABOUT THE AUTHOR

Kevin Arrows


Kevin Arrows is a highly experienced and knowledgeable technology specialist with over a decade of industry experience. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. Kevin has written extensively on a wide range of tech-related topics, showcasing his expertise and knowledge in areas such as software development, cybersecurity, and cloud computing. His contributions to the tech field have been widely recognized and respected by his peers, and he is highly regarded for his ability to explain complex technical concepts in a clear and concise manner.

Comments

4
    JB
    Joseph Bardwell Apr 3, 2020

    I tried plugging the motem into a different part of the house because signal strength was weak and now it isn’t working. I tried it in another spot of the house and still not working. Is it possible that only one the outlets work for the WiFi?

      SW
      Shane Warren Author Apr 4, 2020

      Nope it isn’t, its probably that you messed up the network configuration when you disconnected it. Try to set it back up by contacting your ISP

    BA
    Barbara Jan 17, 2021

    I moved mine upstairs and used the cable from my dta box. Worked fantastic 15 hours a day for 6 weeks and then stopped. US/DS light blinking.
    Happens with every cable I move it to. Maybe I need a new modem? Where is the power button to hold down? Comcast just tells me to unplug it and plug it back.
    Won’t work!!

      MZ
      Muhammad Zubyan Author Jan 19, 2021

      I suggest you download the Xfinity app on your phone to troubleshoot further as it can give a detailed summary of your device and what’s causing the main problem. Once you find out what’s the main cause you can contact Comcast and explain the issue to them.