On Azure’s status page, Microsoft’s messages have linked the outage to an “inadvertent configuration change” and DNS problem. At around 3:20PM ET, the company said it had finished deploying its “last known good” configuration and says customers should soon start seeing signs of recovery, with “full mitigation” expected in the next four hours.

Internet users were left in the dark Wednesday as problems with Microsoft services triggered widespread outages across popular sites, like Xbox, Kroger, and Starbucks.