Thread: What causes the US / DS light to flash on the Xfinity Internet connection?

Xfinity is a trading name for communications from Comcast Cable which is one of the largest ISPs in the United States. The company has existed for over 50 years and has the second largest cable network in the world. However, quite recently, there have been numerous reports where users cannot connect to the Internet and the "US / DS LED" on their routers is flashing.

When the light is steady, it means the connection is established and Internet access is granted. However, when the indicator flashes, it means that the connection is not established correctly. Also keep in mind that the LED blinks continuously during a firmware update. In this article, we will provide you with viable solutions to fix this issue and also inform you of the reasons why this error is triggered.

After receiving numerous reports from multiple users, we decided to investigate the problem and come up with a set of solutions that have eradicated the problem for most of our users. We have also looked at the reasons why it is triggered and listed them below:

Separator problem: most connections use a separator that divides the incoming connection into 3. The separator provides the connection to the TV, telephone and WiFi modem. If this splitter is not working properly or has been damaged, it may end up preventing the connection.

Service Failure: In some cases, there is a service failure on the ISP side due to which the LEDs on the US / DS indicator flash. You can always check for pre-programmed outages or current outages on the company website.
Defective modem: the Xfinity modem you are using may be defective and may be the cause of this problem. Sometimes due to power surges, the modem may lose some of its functionality, which may prevent the establishment of an Internet connection.
Loose wires: Make sure all wires are properly connected to the modem in their appropriate locations. Sometimes a loose cable can prevent the Internet connection.
Now that you have a basic idea of ​​the nature of the problem, let's try the fix now. . Be sure to implement them in the specific order in which they are presented.

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