For the past month, I have continuous got the following error "Sorry, we can't sync your calendar because the web calendar service isn't available right now. We'll sync your calendar as soon as the service becomes available again."  I have seen one post on the same issue but it appears the solution didn't solve the users problem.  My phone which has the outlook.com calendar is in sync with Calendar Live.  It is my desktop calendar through Windows Live Mail is where it is not syncing with Calendar Live with an @outlook.com address.  Thanks for your help!