Unable to send or receive messages for the Live account.

Whenever I sign in to window live mail, I can send or receive on my other email account.

But unable to send or receive in hotmail.

Keep giving the below message.

Server Error: 0x80048820
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x80048820

I can still access my hotmail account using web but not in window live.

Please help.

Thanks.

Henry