(Solved) Xfinity Online Light Off

Comcast is one of the leading internet service providers in the world providing users with internet connections on a wireless system. The router that functions by controlling the internet is known as Xfinity, however, there have been a number of complaints when it comes to connecting to the internet. This often occurs when the online light goes off.

The most important lights that should be present on any kind of Xfinity modem is the “Power” light as well as the “Online light”. Both of these lights should be stable glowing at a full level. It is important to note that these lights should not blink or get dull because they are meant to maintain their stability. If you realize that your online light is off, then it is a clear suggestion that you are not using the internet or there is no internet service.

There are a number of viable solutions that can easily rectify the Xfinity Online light off. This includes first checking the main list, resetting your router and directly plugging in your router or modem to a power source. You can also choose to contact customer care.

Before we go on, let us browse through some of the possible reasons why the online light of your Xfinity Modem is off.

There could be an outage on the end of your service provider. This could either cause the online light of your router to continuously blink or even go off. The ISP could be handling some pre-scheduled maintenance services and it is best if you get onto their website and confirm or even contact them directly.

There could be a problem with your modem. In many cases you will see that your Wi-Fi router could be damaged or defective. This is actually one of the main reasons why you may be experiencing a failure in connecting to the internet. A power surge can easily affect the productivity of your router leading to problems when trying to connect to the internet.

An issue with the splitter. This is actually a very common occurrence. The splitter handles most of the internet connections in your space. The incoming connection is divided into three different links. There is a link that connects directly to your TV, your cell phone and your wi-fi router. When the splitter fails to correctly function, and split the internet link, this could lead to a problem with your connection to the internet.

The wires could be loose. Wires that are not tightly fastened can really cause a problem especially when it comes to the internet system. It is important that your wires are close to each other and are securely fastened into the proper slots.

Fixing the Xfinity Modem with the Online Light Off

Now that we have broken down the possible nature of the problem, we should move on to solving this issue. Below we have listed some of the possible solutions that have proven to solve the issue. It is advisable that you implement these in an organic order as listed below.

Solution 1: Reset the Router

Resetting your router works well as it clears the short term memory, while trying to restore the internet. A power reset is achieved by unplugging the wireless router and waiting for 10 minutes before plugging it back to the power source. After this, you can get back on your PC, or your phone and check if the internet connection has been restored.

Solution 2: Troubleshoot hardware Issues

There are many wireless routers that have malfunctioned and had to be replaced. This could also be a major reason why the online light of your router is off. At this point it is advisable to contact your ISP directly and communicate the problem that you are having. They can test your router and replace it with a new one. A wireless router is also attached to your wall outlet using an Ethernet cable. There could be a chance that this cable is damaged and it could be the reason why you cannot connect to the internet. You can replace your cable by trying out with a brand new cable. This will help you find out whether there is an issue with the line that connects your network to the router.

Solution 3: Check with your Internet Service Provider

In most of the cases, the online light could be off because of an outage from your ISP. There could be a chance that there is a maintenance service going on or a line may have been damaged and this may interrupt your internet service for a while. If you suspect that this is the issue, you can confirm with your neighbors if they are also experiencing the same problem. You can directly contact your ISP or get onto their website to find out if there is an outage from their end.

A Summary Table on How to Fix the Xfinity Online Light

An outage form your ISP
Confirm with your ISP if there is a damaged line or if the outage has stemed from their end
A problem with your router
Perform a power reset to clear the short term memory as the internet is reconnected
An issue with the splitter
Connect your modem directly to a power source or contact your ISP to replace the splitter or your device
Loose wires
Confirm that your wires are screwed fastened tightly into the right ports.


Many of the issues that you are facing with connecting to the Wi-Fi can easily be solved from the comfort of your own home. When it comes to the online light of your Xfinity modem going off, the solutions listed are proven to prompt your modem allowing you to gain access to the internet. These steps will not damage your devices or any sensors that have been installed.

Frequently Asked Questions

  1. What colors should appear on my Xfinity modem?

There should be a white light that indicated that the modem is on and working. If the white light is blinking, this means that there is a limited amount of operation from the modem. If your light turns red, this is an indication that you do not have any connection to the internet.

  1. How long does it take to reset my Xfinity modem?

Resetting your modem takes around 10 minutes. With this reset process, you are guaranteed that you will not lose any previously saved network settings.


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