Comcast Xfinity customers across the U.S. experienced rolling internet outages that started Monday night and continued Tuesday morning, according to internet analysts and user reports.
It wasn’t immediately clear what the cause of the outages were. A Comcast spokesperson said the company was “looking into this” but didn’t immediately respond to request for details.
By Tuesday afternoon, some customers who logged into their Xfinity accounts saw a message that “some customers experienced intermittent service interruptions as a result of a network issue,” and that the issue had been addressed and service was being restored.
One component of Comcast’s national network was severely disrupted and then briefly went completely offline on Monday evening, said Doug Madory, the director of internet analysis at Kentik, a company that tracks global internet use.
Customers on the West Coast saw a major outage on Monday night. Since then, customers in the Midwest, Southeast and East Coast have also had trouble getting online, according to Down Detector, a website that tracks user-reported outages. Outage complaints dropped sharply after 11 a.m. ET, according to Down Detector.
Users across the country have experienced seemingly sporadic outages since then, Madory said, in unusual ways that don’t yet indicate a particular pattern.
“It’s randomly happening,” he said.
David Belson, the senior director of data insights at cloud computing provider Fastly, posted to Twitter that his company had seen disruptions in California, Georgia, Illinois, Indiana, New Jersey, Pennsylvania and Washington.
Comcast owns NBCUniversal, the parent company of NBC News.