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If you're an Xfinity customer, you may have experienced a blinking green light on your xFi gateway before. The blinking green light on these gateways is more-or-less normal, but if it keeps going, and you have a lack of internet, then obviously there's something deeper going on here.

A green light on an Xfinity xFi Gateway indicates the gateway does have an upstream connection and is registering with the service provider. The light should stop flashing after ~2 minutes. If it doesn't, try power cycling your gateway and then hard-resetting it before contacting Xfinity support.

So, what if this doesn't just magically fix itself? There are several troubleshooting steps you can take to resolve the issue. In the next section, we'll walk you through each of these steps, including that hard reset option we mentioned. Stick around for some tips on using the Xfinity app to work with your Gateway below as well. Let's dive in!

What Causes Xfinity Modem Blinking Green Lights?

XFinity Router Blinking Green

Xfinity modems like the classic xFi Gateway (from Xfinity) are known for their reliability and speed, but sometimes, users may encounter an issue where the modem's LED light is blinking green. To be clear, the LED has multiple colors, and some users encounter fail states related to a white, blue, or even orange light, but for today we're focusing on what to do when you encounter a green one, starting with why this happens.

The reason the router blinks green is that the router has booted up and is establishing a downstream connection with the service provider. You may also see the green light flashing along with an orange one when the unit is downloading a software update from Xfinity, but, of course, if your light is only green, that's not your issue. It's most likely just the router doing it's normal pairing process.

But what if it won't stop? The router is great, but it isn't perfect. It could glitch or experience some run-of-the-mill hangup during registration–or worse, there may be nothing to register with if the ISP is having an outage or someone has plowed through an underground fiber optic cable or something.

Now that we know some causes, though, let's talk about fixing it. You can check your Xfinity connection and/or check for a service outage at this page (but note you'll need to access it on your phone if you don't have WiFi!)

How to Fix An Xfinity Modem With A Blinking Green

RESET For Success

First, try a soft reset by powering off your modem and unplugging it from the electrical outlet. Wait for 30 seconds before plugging it back in and powering it on. This should clear any temporary glitches and connectivity issues.

If the blinking green light persists, you may need to perform a hard modem reset. This will reset your modem to its default factory settings, which means you'll need to set up your network from scratch again. However, you can use the Xfinity app (iOS or Androd) to streamline this process.

Here are the steps to perform a hard reset on your Xfinity modem:

  1. Locate the WPS button on the back of your modem.
  2. Press and hold the WPS button for at least 30 seconds.
  3. Wait for the modem to restart.
  4. Once the modem has restarted, set up your network from scratch using the Xfinity app.

If the blinking green light continues after performing a hard reset, the situation is almost certainly now something out of your control. An ISP outage, a mysterious fault in the router–the remaining causes are going to be things you are better off not spending your time and effort diving into (at least in our opinion). Instead, we'll talk about what else could be the problem and what to do about it in the next sectoin.

Further Troubleshooting + Contacting Xfinity Support

If the soft and hard reset methods we discussed earlier do not fix the blinking green light issue on your Xfinity modem, then it's time to contact Xfinity support. While some other sources may suggest checking for damaged cables or router overheating, we can tell you flat out that, from our experience, these are exotic problems that not many people face in general, and they aren't the type of errors that fail into a flashing green light here at all.

So, next, head over to Xfinity's support page and start trying to get in touch. When you contact them, make sure to have your account information and modem model number on hand.

This information will help the representative quickly identify your account and provide you with the necessary support. The representative may walk you through some additional troubleshooting steps or even schedule a technician to come out and take a look at your modem.

Solving the Green Light Issue Once And For All

So, now we know that, while the Xfinity blinking green light can be a puzzling sight for many home theater enthusiasts, it's often just a sign of your device communicating or updating. If a restart and a hard reset don't do the trick, you need to go right to the horses mouth to contact Xfinity and find out about an outage or further support.