Xfinity Ethernet Not Working: How to Troubleshoot in Seconds

Yes, Ethernet failing to function as usual is a common issue affecting many users in the market today. Several reasons result in the Ethernet failing to work. The reasons include; if the Ethernet is disabled in the computer or laptop, a faulty Ethernet cable, among others. If you fail to resolve the issue sooner, it may worsen, resulting in serious internet connectivity issues.

Despite the Ethernet failing to function, there are several ways in which you can successfully fix it. The few things you can do if your Wi-Fi is working, but your wired ethernet connection isn’t. Turning off the Wi-Fi is the first thing you should do. “Open Network and Internet Settings” by right-clicking on the Wi-Fi symbol in the notification area. To switch off Wi-Fi, go to the Wi-Fi tab and utilize the toggle.

Fortunately, the article describes the main reason why the Ethernet may fail to function. Also, it states the troubleshooting methods to ring your device to correct function, including the FAQs. When fixing the issues, remember to follow the manufacturer’s instructions on carrying out the process.

Common causes of Ethernet cable failing to function

Common causes of Ethernet cable failing to function

There are several reasons why the ethernet cable may fail to work, and they include the following;

a) Poor physical connection.

b) Faulty ethernet cable.

c) Incorrect system settings.

d) Computer blocking on the router.

e) Faulty computer.

f)  Incorrect computer settings.

Steps on how to Troubleshoot Xfinity Ethernet

xfinity ethernet not working

When you start troubleshooting difficulties with your Ethernet connection, be sure the issue is with the Ethernet and not the Wi-Fi or network overall. Unplug your device from the Ethernet cable and reconnect just to Wi-Fi to see if you can get online. If you can’t, the problem is most likely with the Ethernet connection, and you can continue troubleshooting.

If you can’t connect to the internet using Wi-Fi and Ethernet, it’s most likely a problem with your ISP. The network may be down for maintenance, and you may contact your ISP to find out when it will be up and running again.

1. Reboot the Xfinity Modem to eliminate the issue

Reboot the Xfinity Modem to eliminate the issue

Like any other electrical system, your Xfinity routers have software that tells the router’s components what to perform. A flaw in this software can cause internet connectivity troubles in some cases. In such cases, the most usual and likely, most straightforward answer is to reboot your modem.

If you restart any gadget, it clears its memory, eliminating the problematic code and resetting the system to its original condition. As a result, rebooting a device is one of the most basic yet efficient remedies to various technical problems.

You can reboot your Xfinity modem in one of two methods.

1. Look and open the Internet tab after logging into your Xfinity account.

2. Choose “Reboot this gadget” from the menu on your router.

3. To verify your choice, tap “Reboot Equipment.”

4. It will take roughly 5 to 10 minutes for your gadget to reboot.

2. Turn Off or Restart Your Pc

Rebooting your pc, like restarting your router, clears its memory, that is, Random Access Memory, and deletes all traces and temporary caches that create themselves by background system activities. Resetting your pc also resolves any problems with your internet connectivity or network drivers, allowing you to reconnect to the internet.

3. You must reset the Xfinity Router

You must reset the Xfinity Router

If restarting your Xfinity router fails to cure the problem, you may want to try resetting your router to factory default settings. When you reboot your router, it’s identical to restarting, except that you erase all of your data as well. All internet connection settings, including the Wi-Fi name and password, are wiped, returning the router to its original state.

Find the location of the reboot button on the back of your Xfinity router to do a reboot. It’s a compact, indented button that’s usually a different color than the rest of the router’s body to make it stand out.

Gently push and press the button with a paper clip or a pen until the lights on the front of the router turn off. Your modem will re-initialize, and the lights will turn back on after a few seconds. It’s vital to keep in mind that restarting your router means it’s completely blank. To get the router up and running again, you must enable it and set it up exactly as you did the very first time.

4. Examine the Physical Link

Suppose you can easily connect to your house network or Wi-Fi network but not to the internet via a wired Ethernet connection. In that case, the first thing you must look into is the physical connection to the router. Ensure you connect your Ethernet wire to the router’s local network. Another primary source of difficulties is the Ethernet cable.

If your wire has twists or folds or is faulty due to puncture by items such as hooks or staples, it is defective and needs immediate replacement. If wriggling the cable or carrying at a specific tilt repair the issue, it can be an issue with your router’s Local network port, in which case you’ll need to take it to a Service Center to fix it immediately.

5. Ensure your laptop or computer’s network settings are correct

Your network connectivity troubles may be a result of incorrectly configured network settings. Locate your internet network setups page and ensure that Local Area Connection is active, based on what Operating System you’re using. If it doesn’t work, consider upgrading your Ethernet driver or deleting and installing it again.

A device driver is essentially software that informs a piece of hardware how to connect with your pc or laptop. In this scenario, upgrading your Ethernet driver can aid in the resolution of your internet network connection problems by allowing your machine to operate more efficiently with the Ethernet cable.

6. Examine Your Router to See If Your Computer Is Restricted

Examine Your Router to See If Your Computer Is Restricted

Your router may ban the MAC address of your Computers Ethernet network adapter in some uncommon instances. While your computer will be able to link to the router, it will not send any internet network requests to reconnect to the internet through the router.

Open your router’s user panel on your web page to see if this is the source of your internet or network issues. Then go to Controlled Items in the Parental Controls window. Look for the Banned Items tab on this page and see if your Computers Ethernet MAC Identification is present. You may learn how to find the MAC Identification of your computer using a command prompt internet.

7. Call Xfinity Customer Service for assistance

If none of these alternatives are successful, your router likely has an internal problem. In this instance, your only choice is to call Xfinity Customer Service. Their client service information is on the back of the router’s box or their official website. Ensure to provide all of the actions you took to fix your matter, as this will assist them in resolving your incident more quickly.

Buying guide for Xfinity ethernet cable

Buying guide for Xfinity ethernet cable

 There are several factors you must consider before buying an Xfinity ethernet, and they include;

  • Consider the advanced features of the cable such as; secure wireless connection, xFi, devices you can connect using the ethernet cable.
  • Consider the version of the Ethernet. Ensure the cable is in the latest version before purchasing. Check all features and compare them with the previous one to ensure they are all in the newest version to prevent any inconveniences when using the cable.
  • Cost. Buy an Xfinity cable that is cheap and fits your budget. Such will help you save money for future use or any emergencies.
  • Ease of use. Buy a cable that you can install easily. The installation process is essential, especially when it comes to time-wasting. Avoid buying a line that can consume a lot of time when buying the cable. Also, ensure the cable comes with the manufacturer’s manual guide to help you know how to use and install the line.
  • Suitability. Buy an ethernet cable depending on the devices you are going to connect them with, if it is a television, computer, also, or any other device.

Frequently asked questions:

  • What routers are compatible with Xfinity?

You may review the availability of authorized commercial products online to see which third-party routers are suitable with Xfinity. Check to see if your router matches your internet bandwidth tier.

  • What is the best way to link my Comcast cable to Ethernet?

Plug an Ethernet cable to the Local network port on your gateway, then use a coaxial cable that connects the modem to the cable wall outlet while you plug it in.


If your ethernet cable fails to function as usual, first check the possible cause and try fixing the problem depending on the leading cause. Luckily, the information above states various ways to identify the issue’s leading cause and troubleshoot the process. Therefore, ensure you read the article before trying to fix the problem on your own. But, if the issue persists, it is advisable to seek help from a professional.

When using the ethernet cable, ensure you buy it from a genuine shop. Also, take some precautions when using the line. For instance, ensure you wire it correctly to obtain positive results. Also, provide you service and maintain it per the manufacturer’s maintenance schedule and avoid exposing it to extreme weather conditions.

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