I can't send or receive email from my windows live.  I receive this message:

Unable to send or receive messages for the Hotmail account.

Server Error: 5102
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x8DE00002

  I can log into my Hotmail account via the internet. But I still have no new email, and I've sent test emails to that address.  The last email I received was this morning.

Can someone help?