Comcast outage takes out phone and internet service across the U.S.

Comcast engineers have resolved phone and internet service outages that affected business customers across the country by Wednesday afternoon —  but even as service was starting to come back on, Comcast noted that some customers may still be affected.

“We experienced a service interruption today with our Comcast Business Voice and VoiceEdge Select services and we apologize,” Comcast informed Digital Trends. “Our engineers began working to address the issue immediately and services have been restored for most of our customers. We recognize that some customers are still impacted and we expect the issue to be fully resolved shortly. We have every resource focused on getting everyone back online and apologize again to the customers who were affected.”

Earlier in the day, Comcast’s business Twitter account only confirmed that business phone service has been down, though some customers also reported on service tracker Down Detector that the outage was also disrupting internet access in cities such as San Francisco, Miami, Chicago, Portland, and Seattle. Fortunately, Comcast tweeted out that the issue was already being fixed for a number of customers.

The outage seems to be intermittent, with long periods of down time followed by quick periods of online time. “Internet down in Tallahassee, FL and it has been going up and then down every other hour or so since Tuesday afternoon,” user Wycked wrote on Down Detector’s comment section.

Businesses relying on landline access for phones reported that customers have not been getting through when they attempt to call in, and some customers have been successful in forwarding calls on their business lines to cell phones. With a few medical practices relying on Comcast for small-business phone service, the outage is much more than a nuisance.

“Unacceptable when patients cannot reach out to, or be contacted by their medical practitioners,” KJ Buttler wrote on Down Detector. “I am recommending that we stop using Comcast voice in the immediate future. Too many incidents of outage.”

Comcast — the service you love to hate (with good reason) — acknowledged the problem on its @ComcastCares support account on Twitter: “@comcastbusiness customers may still be experiencing an issue with their Voice service. We appreciate your patience as we continue to resolve. Please continue to check back here for more updates.”

“Now they’re telling me 2:55 p.m. California time,” user Kerry wrote on Down Detector. Another user reported that service is expected to be back by 5:45 p.m. ET for the Miami area. Other users noted on Twitter that service is slowly coming back in their area.

Comcast noted that the outage only affects Comcast business subscribers and not Xfinity wireless customers. But those customers haven’t been issue free: A data-stealing bug uncovered two weeks ago that prompted Comcast to shut down the Xfinity activation website. This latest outage follows a smaller recent service disruption affecting parts of Colorado earlier this month. In that incident, Comcast blamed the outage on a physical cut to its fiber cables.

Comcast has not provided any explanation for today’s outage. With service disrupted across the country, the culprit may be more than just a broken line. Perhaps someone rebooted the wrong router?

Updated: Added Comcast’s official tweet noting that service has been restored for most customers. Added official statement from Comcast.