Microsoft is already working on it, noting on its support page "We are aware of the problem and appreciate your patience while we implement a solution." Joystiq is trying to determine the cause of today's issue, and will keep you updated as the story develops.
Update: Microsoft says you should sign out and sign back in, and suggests you try re-downloading your profile if the issue persists.
- Key specs
- Game format Optical disc, Downloadable
- Online features Multiplayer, Voice chat, Video chat, Store, Browser
- Drive capacity 500 GB
- Controller type Wired, Wireless
- Motion controls Camera / optical
- Video outputs HDMI
- Released 2013-11-22