How to Fix an Xfinity Modem (Keeps Going Offline/Resetting)


Why does my Xfinity modem keep disconnecting?

Your Xfinity modem may keep disconnecting because of loose cable connections, interference in the signals, a long distance between the modem and the browsing device or a service outage. 

  • Loose connections
  • Signal interference
  • Service outage
  • Distance between the modem and the laptop/computer.

 

Checking for the actual cause of your Xfinity modem disconnecting and taking the appropriate action will resolve the problem.

 

How to fix the Xfinity modem that keeps disconnecting and going offline?

You can fix an Xfinity modem that keeps disconnecting and going offline by inspecting the cables, checking the interference in the signals, resetting the router, and reducing the number of devices connected to the Xfinity Wi-Fi modem.

 

To do this, follow the steps given below. 

  1. Check the cable connections to see if they are loose. If they are loose, gently twist them and see if the Xfinity WiFi gets restored or not. In addition to this, inspect the cables to spot any damage in them. If the cables are damaged, you will have to replace them. 
  2. Make sure that you place the router high above the ground. Also, try to keep the router in the same room as your browsing device. 
  3. Always clean your router and its ports to keep the dust away from clogging the ports. This is one of the most common reasons why the Wi-Fi keeps disconnecting.
  4. Connect only the essential devices with the Wi-Fi. Connecting too many devices on the Wi-Fi may overload the bandwidth of the internet, causing the modem to disconnect repeatedly.
  5. If the modem still keeps disconnecting, reset your internet router by pressing the Reset button given on the back side of the router. 

 

Why does my Xfinity modem keep resetting?

Your Xfinity modem may keep resetting because of overheating, loose wiring or interference from nearby network connections. 

 

Basic troubleshooting processes can easily fix these issues. 

  • Loose connections
  • Overheating of the modem
  • Interference from other network connections

 

How to fix an Xfinity modem that keeps resetting?

You can fix an Xfinity modem that keeps resetting by checking the cables and power connectors, preventing the modem from overheating and overworking, resetting your modem and updating the firmware of your modem.

 

To do this, follow the detailed steps given below. 

  1. Check the power connections at the wall outlet and the power port at the back of the Xfinity modem. Make sure that the power LED lights up solid. If it blinks, you will need to change the power adapter.
  2. Check the cable connections going in and out of the modem and your device. If any of the wires are loose, remove them and plug them in again firmly. 
  3. Keep the modem in a well-ventilated space. Make sure that the area around the modem is not too crowded. 
  4. If your modem has an in-built router feature, the modem will be employed for several functions at one time. So, to prevent your modem from getting overworked, keep only essential devices connected to the internet. 
  5. If the issue still isn’t resolved, try resetting the Xfinity modem by pressing the Reset button at the back of the modem. This will remove all the information and current configuration of the modem. 
  6. Sometimes, the firmware of your modem can go outdated, resulting in the modem resetting continuously. So, you will need to download the firmware updates and install them on your laptop or computer. 

 

xfinity modem keeps going offline

 

Xfinity modem Flashing Light Codes Chart

Light           Device Status Error Meaning
No Light OFF  
Steady White Light The device is ON and operational.  
Blinking White Light Limited operation The device is not activated fully.
Steady Red Light No internet connection Trouble connecting to the internet.
Blue Blinking Light WPS mode Gateway trying to make connection.
Flashing Orange Light Firmware Update Firmware update in process
Flashing Green Light Unstable Internet connection Internet keeps getting disconnected
Flashing Red Light No Internet connection The device is not getting connected to the Internet.
Other Lights Trying to connect to Xfinity system Cycle completion is taking time

 

Why is my Xfinity modem blinking blue

Your Xfinity modem may have a blue light blinking because of the modem trying to establish a secure connection with a wireless device. When the connection is established, the blinking blue light turns a solid white.

If you have a constantly blinking blue light on your Xfinity modem, you may fix the issue by restarting the router or simply setting the router to factory default settings.

 

Follow the steps given below to fix it. 

  1. Switch your Xfinity modem OFF and remove the power cables from the router.
  2. Remove the interface cable and wait for a few seconds. 
  3. Plug the power cable back in the socket and the modem. Turn the modem ON and initiate the WPS mode to see if the blue blinking light goes away. 
  4. If the problem is still there, reset your modem to factory default settings. To do this, Keep the modem ON and press the Reset button at the back of the modem. Hold the button until all the lights on the modem go OFF. Restart the modem and configure the settings again.

 

 

Why is my Xfinity modem red light blinking?

Your Xfinity modem may have a red light blinking because of a slow internet connection. You can fix this issue by restarting your modem or checking the cables to see if they are damaged or broken. 

 

Follow the steps below to resolve the issue of a red light blinking on your Xfinity modem.

  1. Inspect the cables closely to spot physical damage to any wires going in and out of the modem. If there are any damaged wires, immediately replace them with new ones and see if the problem goes away. 
  2. Unplug the power cables of the modem to restart the Xfinity modem. 
  3. Wait for a minute and press the Power button on the modem. Hold the button for at least 30 seconds to restart the modem properly. 
  4. Ensure that the power cable is tightly attached to the modem and the wall outlet. 

 

Why is my Xfinity modem orange light flashing?

The orange light flashing on your Xfinity modem indicates a firmware update in the process. In this case, you may need to wait for some time till the firmware finishes updating.

 

If the orange light still doesn’t stop flashing, you may fix the issue by following the steps given below.

  1. Check if all the cables are firmly connected to the modem. If not, then remove each wire and plug it back in. 
  2. Reboot the modem by unplugging the Power cord and waiting for 10-15 minutes before plugging it back into the modem. 
  3. Check the modem by connecting it to some other device. If the network connection doesn’t appear, the modem has gone bad and needs replacement. 
  4. Sometimes, the signal may be weak from the end of your Internet Service Provider. In that case, wait for the signal to improve or contact your Internet Service Provider. 

 

Why is my Xfinity modem green light flashing?

A green light flashing on your Xfinity modem indicates an unstable internet connection. This can happen due to a server problem, loose cable connections, or power interruptions.

 

You can fix this issue by trying the solutions given below. 

  1. If the signal strength coming from your Internet Service Provider is weak, then you must contact your ISP to fix the issue. 
  2. Check the cable connections to and from the modem and make sure that there is no fraying or breakage of the wires. 
  3. Make sure that the power cord is firmly attached to the modem and that there is enough power reaching the modem from the power outlet. 
  4. Do not connect too many devices on the network channel. This can cause overloading of the modem, leading to the green light flashing. 

 

Why is my Xfinity modem Red light flashing?

The red light flashing on your Xfinity modem indicates no internet connection reaching the device.

You can fix this issue by following the steps given below.

  1. Restart the modem by removing the power cord and waiting for about 15 minutes. Plug the power cord back and press the Power button. Press and hold the button for about 30 seconds to restart the modem properly.
  1. Check the power outlet to see if it’s working. 
  2. Inspect the cables to see if they are damaged or broken at any point and replace them. 
  3. If the service is down from Xfinity, wait till the service improves, and then try reconnecting the internet. 

 

Xfinity Wi-Fi is connected but I have no Internet

If you are facing the problem of a connected Wi-Fi but no internet, it may be because of a faulty router, DNS issues, problems with the IP address or full cache storage on your computer or laptop.

 

You can fix this issue by trying the steps given below. 

  1. Restart your Wi-Fi router by turning the router OFF for a few seconds. Turn it back ON to see if the problem persists. You can also reset the Wi-Fi through the Xfinity My Account application. 
  2. Troubleshoot the issues with your Xfinity account. To do this, open the application and go to the Internet option. Select the device that is problematic. Click the Troubleshoot option and then select Start Troubleshooting option to start scanning the device. 
  3. Once the scanning completes, click the Restart Device option. When the device restarts, see if the no internet problem goes away or not. 
  4. Troubleshoot the issues related to your laptop or computer. To do this, log in to your Xfinity account and click the Connect tab. Select the faulty device from the list of options. 
  5. Scroll down and click the Troubleshoot Device option. When troubleshooting is completed, click the Retest Signal Strength option to solve the issue. 

 

How to reset an Xfinity modem?

You can reset an Xfinity modem by pressing and holding the Reset button.

 

To do this, follow the detailed steps given below.

  1. Find the recessed Reset button located at the back of the router.
  2. Use a paper clip or similar pointed object to press and hold this button until you see the lights on the front of the modem go OFF. 
  3. When the lights go OFF, release the button. Wait for a few seconds before the router initializes again. When it’s done, you will see the lights at the front of the modem coming back ON. 
  4. Your wireless network may take a few minutes to reappear. When it does, change the password of the Wi-Fi. 

 

How to install a Xfinity modem?

There are two ways of installing an Xfinity modem. One is using your mobile phone and the other one is without a mobile phone.

 

Here’s how you can install an Xfinity modem step by step. 

  1. If you have a mobile phone, download the free Xfinity application from the App Store or Play Store. Open the app and follow the prompts given by the application to install your Xfinity modem and set up the Wi-Fi. 
  2. If you don’t have a mobile phone, start installing the Xfinity modem by connecting all the cables. Place the modem in a central location situated close to the cable wall outlet. 
  3. Connect one end of your coax cable to the modem’s port and the other to the cable outlet. Twist them until they are tight enough. 
  4. Connect the power source and plug the two ends of the power cable at the back of your Xfinity modem and to the electrical outlet. 
  5. Wait for a few seconds or until the power US/DS lights stop blinking for one minute and create the Wi-Fi connection. 
  6. Wait till the 2.4 GHz and 5GHz lights begin flashing. When they begin flashing, find the network name and password printed on the modem. 
  7. Enable Wi-Fi on the device. Select the network name, enter the security password to install the Xfinity modem, and set up Wi-Fi.

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