How to Fix the Blinking Green Light on Your Xfinity Modem

PDF download Download Article
A beginner-friendly guide to understanding and fixing a flashing green light on your gateway
PDF download Download Article

A flashing green light on your Xfinity modem indicates a problem with your internet connection. To stop the blinking green light and get back online, you'll just need to do a few quick troubleshooting steps.

Why Your Xfinity Modem Light Blinks Green

If your modem has a blinking green light, it is trying to reconnect to the internet. The connection is unstable, which can be due to loose wires, an overloaded connection, account problems, or outages. Tighten the cables, reset your modem, run a test in the Xfinity app, and contact Xfinity if needed.

Section 1 of 3:

Blinking Green Light Causes

PDF download Download Article
  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a8\/14302853-1.jpg\/v4-460px-14302853-1.jpg","bigUrl":"\/images\/thumb\/a\/a8\/14302853-1.jpg\/v4-728px-14302853-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If there's a green blinking light on your Xfinity gateway, you've probably noticed that your internet connection is slow, erratic, or not working at all. The flashing green light indicates that your modem is trying to reconnect to Xfinity's network. [1] In some cases, the green light will stop flashing on its own, and you'll regain internet access. Other times, you'll need simple troubleshooting steps to get back online .
    2. Advertisement
Section 2 of 3:

Blinking Green Light Fixes

PDF download Download Article
  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a6\/14302853-2.jpg\/v4-460px-14302853-2.jpg","bigUrl":"\/images\/thumb\/a\/a6\/14302853-2.jpg\/v4-728px-14302853-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If any of the cords connecting your Xfinity modem to the internet and other devices are loose, the unstable connection may cause your modem to disconnect and reconnect repeatedly. Since the flashing green light appears when your modem is trying to reconnect, tightening or replacing problematic cables can fix the problem.
  2. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/9\/93\/14302853-3.jpg\/v4-460px-14302853-3.jpg","bigUrl":"\/images\/thumb\/9\/93\/14302853-3.jpg\/v4-728px-14302853-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    No matter which Xfinity modem you have, the process is the same—unplug the power cable from your modem, leave it unplugged for about a minute, and then plug it back in. After that, wait about 3 minutes and try using the internet again.
    • If the green light is still flashing, the modem may be having trouble reconnecting to the network. Wait about 15 minutes to see if it resolves, then continue troubleshooting.
  3. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b8\/14302853-4.jpg\/v4-460px-14302853-4.jpg","bigUrl":"\/images\/thumb\/b\/b8\/14302853-4.jpg\/v4-728px-14302853-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    Use a phone or another device with internet access to check Xfinity's outage map. If there's a service outage in your area, the green light on your modem may continue flashing until service is restored. Just type your Xfinity service address into the field at https://www.xfinity.com/support/statusmap to find outages near you. [2]
    • If there is an outage, you'll need to wait until service is restored.
    • If you need to use the internet on your computer , you may be able to set up a mobile hotspot on your Android or iPhone if supported by your mobile carrier.
  4. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/2e\/14302853-5.jpg\/v4-460px-14302853-5.jpg","bigUrl":"\/images\/thumb\/2\/2e\/14302853-5.jpg\/v4-728px-14302853-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If you have an Xfinity xFi gateway, you can run tests to check your modem and network for problems. [3] Using a phone or tablet connected to Wi-Fi , launch the Xfinity app, select WiFi , tap Run a test , and then tap Run a test under Full Network Test.
    • The test will first check for Xfinity outages in your area, and then proceed to tests specific to your home network.
    • If the issue is that your modem isn't fast enough, or that it's too outdated to maintain a stable connection, you'll be prompted to upgrade to a new one at no extra charge. [4]
    • Follow any on-screen troubleshooting steps to determine the problem causing the flashing green light.
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/4e\/14302853-6.jpg\/v4-460px-14302853-6.jpg","bigUrl":"\/images\/thumb\/4\/4e\/14302853-6.jpg\/v4-728px-14302853-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If too many devices (computers, TVs, phones, etc.) are using your Xfinity internet service at once, the modem may be overloaded. If disconnecting some of your devices fixes the flashing green light, consider upgrading to a higher-level Xfinity plan with a more powerful modem and faster connection .
  6. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/aa\/14302853-7.jpg\/v4-460px-14302853-7.jpg","bigUrl":"\/images\/thumb\/a\/aa\/14302853-7.jpg\/v4-728px-14302853-7.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If you can use your phone's mobile data, sign in to the Xfinity app. If there's a balance overdue, your account may have been suspended for nonpayment, which could lead to a green flashing light on your modem. Paying your outstanding balance will reinstate your account and fix the blinking light on your modem. [5]
  7. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/56\/14302853-8.jpg\/v4-460px-14302853-8.jpg","bigUrl":"\/images\/thumb\/5\/56\/14302853-8.jpg\/v4-728px-14302853-8.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    If your modem continues to flash green after troubleshooting, an Xfinity tech will need to investigate the issue. In some cases, they'll need to send someone out to your location to check the lines in your neighborhood and/or building, but they may be able to fix the problem on their end.
    • Call Xfinity support at 1-800-Xfinity (800-934-6489). You can also get help via chat in the Xfinity app, or by visiting https://www.xfinity.com/chat/ in a web browser.
    8. Advertisement
Section 3 of 3:

Xfinity Modem Light Guide

PDF download Download Article
  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c6\/14302853-9.jpg\/v4-460px-14302853-9.jpg","bigUrl":"\/images\/thumb\/c\/c6\/14302853-9.jpg\/v4-728px-14302853-9.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>Image by: Uploader<br>\nLicense: <a target=\"_blank\" rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\/\">Creative Commons<\/a>\n<\/p><\/div>"}
    There are a few types of Xfinity modems available, many of which have different status lights and indicators. Look near the LED for a label that describes its function. It's also important to know that some blinking lights don't indicate problems. For example, if the Wi-Fi light is blinking, that indicates there is activity on your network. [6] Here's a quick guide to the lights on most Xfinity xFI internet gateways.

    Understand the Lights on an Xfinity Modem
    No lights
    Your modem is off
    No action needed
    White or white/purple light - Steady
    The modem is on after activation
    No action needed
    White or white/purple light – Blinking
    Modem is on but not yet activated
    Fix: Complete new Xfinity account setup [7]
    Red light - Steady
    No internet
    Fix: Your internet service is down (contact Xfinity)
    Blue light – Blinking
    WPS mode is on (you pressed the WPS button)
    No action needed – just connect a new device to Wi-Fi if desired.
    Orange, yellow, green, and other blinking lights
    Your modem is trying to connect
    Fix: If 15 minutes pass and still no connection, power cycle your modem, then contact Xfinity if needed

Expert Q&A

Ask a Question
200 characters left
Include your email address to get a message when this question is answered.
Submit
      Advertisement

      Tips

      Submit a Tip
      All tip submissions are carefully reviewed before being published
      Submit
      Thanks for submitting a tip for review!

      You Might Also Like

      How to Force Shut Down or Restart a Frozen Mac
      3 Ways to Reset a Computer’s BIOS: Software & Hardware Methods
      How to
      Delete Temporary Files and Delete Prefetch Files from Your Computer
      How to
      Open Windows Services
      How to
      Fix Windows 10 when It Is Very Slow and Unresponsive
      How to Change Computer BIOS Settings on a Windows PC: Guide
      Find or Change the Administrator on PC, Mac, & Chromebook
      How to
      Add New Options to Right Click Menu in Windows
      How to
      Edit a Dat File
      10 Ways to Fix a Crashing Windows Computer
      How to Restart and Troubleshoot a Frozen Fire TV Stick
      How to
      Delete DLL Files
      How to
      Automatically Turn On a Computer at a Specified Time
      How to Run Chkdsk: 4 Simple Methods for Scanning a Drive
      Advertisement

      References

      1. ↑ https://www.xfinity.com/support/articles/xfi-gateway-led-lights
      2. ↑ https://www.xfinity.com/support/statusmap
      3. ↑ https://www.xfinity.com/support/articles/whole-home-network-faqs
      4. ↑ https://www.xfinity.com/support/articles/whole-home-network-device-tests
      5. ↑ https://www.xfinity.com/support/articles/xfinity-app-bill-pay
      6. ↑ https://secure.xfinity.com/anon.comcastonline2/support/help/faqs/wireless_gateway/HOW5220_TC8305C_User_Guide.pdf
      7. ↑ https://www.xfinity.com/support/articles/xfi-gateway-led-lights

      About This Article

      Thanks to all authors for creating a page that has been read 17,393 times.

      Is this article up to date?

      Advertisement