i get this message when i am about to read or reply my email account  in hotmail..why? please advise thanks in advance regards richard

Unable to send or receive messages for the Hotmail account. To send and receive messages in your Hotmail account, go to http://hotmail.live.com on the Web, or try again later. To get help from Windows Live Customer Support, go to http://support.live.com and click Windows Live Mail in the list of services.

Server Error: 0x80072EE7
Server: 'http://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x80072EE7