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

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

Would someone give me a fix for this error as it is becoming more frequent and some times I can't pick my mail up for two days.

Thank you