When you cannot reach Outlook.com or SkyDrive, check https://status.live.com/.
From https://status.live.com/detail/outlook
From https://status.live.com/detail/outlook
There's a problem with Outlook right now.
Problem: We're having a problem accessing email. You might not be able to see all your email messages. August 14 9:49 AM
Updates: We're working on the problem and will provide an update by August 14 2:00 PM. Thank you for your patience. August 14 12:01 PM