The Xbox Live Service Status page on Xbox.com has been updated to reflect this, but we still don't know exactly what's going on.
If you turn your Xbox One on right now and face nothing but a black screen, it's not just you. We will keep everyone informed once we have more information to share.
By around 3:30pm EST Xbox Support had confirmed on Twitter that the issue had been resolved and gamers could get back online - though Xbox Support didn't elaborate on what, exactly, caused the errors in the first place. It's unclear if Microsoft's Xbox One issue was related, but it did seem like an Xbox Live and software problem that made the Xbox One unusable for many customers. "We'll have additional updates to provide soon". Microsoft said it was aware of the reports and it was working on the problem.More news: Atlanta United, Newcastle Agree on Miguel Almiron Transfer
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It was unclear at the time what was causing these issues, but a quick look on Twitter showed that the problems were affecting a large number of players.
To make matters even more confusing, after directing people to Microsoft's Service Status page, the official Xbox Support account tweeted that that website was having technical difficulties as well. "Stay tuned, and thanks for your patience". On the Xbox One subreddit, for instance, they reported seeing a black screen after their consoles booted up.
Xbox One sign in is also labelled as experiencing "limited" functionality. Others experienced errors when signing in or updating an application.