Unable to send or receive messages for the Hotmail (mtodd1014) account.

Server Error: 0x80048849
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x80048849

I have uninstalled and reinstalled program. My outbox is clear.
Any other suggestions?

Mollie