The Windows Live Network is unavailable from this site for one of the following reasons:?

The Windows Live Network is unavailable from this site for one of the following reasons:

This site may be experiencing a problem

The site may not be a member of the Windows Live Network

You can:

You can sign in or sign up at other sites on the Windows Live Network, or try again later at this site.

*****

This is the error message my gf is getting when trying to sign into her hotmail. Her iPad can't access her hotmail, she can't access it on her laptop in either Chrome or IE, and got the same error message on Firefox on my PC (immediately after I successfully logged into my own hotmail account).

I've seen a number of people querying this error message on this or other sites, but it seems that many of them were having issues specific to a browser or plugin, and I'm reasonably certain that's not what's going on here. The message suggests that it could be a server-end issue, but I'd hate to try waiting it out only to find that it's a local problem of some sort that we need to fix ourselves. Is it possible that there's some action on our end that could resolve it? If this is a server-end issue, would this usually resolve itself, and how long would we expect it to take?