Comcast’s Xfinity internet service was down in many parts of the US on Monday.
A map from DownDetector.com showed that outages were affecting states across the Northeast as well as cities like Los Angeles and Boston.
When the outage first began, the Comcast Cares Twitter account said the company was working on a fix, while the Comcast Business account replied to angry customers, saying it appreciated their patience.
Some customers are having issues with their XFINITY Internet service. We apologize & appreciate your patience while we work to fix.
— ComcastCares (@comcastcares) November 6, 2017
We are aware of the current internet issues. We apologize and appreciate your patience while we work to fix. –SLM
— Comcast Business (@comcastbusiness) November 6, 2017
At around 2:00 p.m. Pacific time, Comcast tweeted that all customers should be back up and running.
Later in the day, a Comcast spokesperson referred us to a Techcrunch story that reported the issue actually stemmed from “backhaul” provider Level 3. The company tweeted that the problem was caused by a configuration error that affected IP-based customers like Comcast. Level 3 did not immediately respond to a request for comment.
On Nov. 6, our network experienced a disruption affecting some IP customers due to a configuration error. All are restored.
— Level 3 Network Ops (@Level3NOC) November 6, 2017