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Fri, Aug 11, 2017 10:00 AM


ANSWERED: Troubleshooting your XFINITY Internet connection when the US/DS lights are blinking


 I have no Internet access. I've noticed that the US and DS buttons on the modem are blinking, which they didn't do before. What does this mean?



***Created by our Community Experts***


The modem's lights are a visual indication of its current status. It is normal for your US/DS (upstream/downstream) lights to flash briefly while establishing a connection. Continuously flashing or blinking US/DS lights indicate that the modem is unable to establish a connection due to poor or no signal.


Typical reasons for this are:

  • There is a service outage.

  • There is a wiring misconfiguration.

  • The modem is defective.


If you are experiencing this condition, first check for a service interruption by:

  • Using the XFINITY My Account mobile app.

  • Logging into your Comcast account and clicking the check for service interruptions link.

  • Visiting the Xfinity Status Center.

  • Calling 1-800-COMCAST (1-800-266-2278) or 1-800-XFINITY (1-800-934-6489)

  • If you've registered your mobile phone number for Comcast Alerts, you can text OUT to 266278 (COMCST)


Next, inspect your wiring.  See the troubleshooting guide.


Contact Comcast if the issue persists.

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