None of the answers help me. I have tried to both settings, with flag for Internet options/connections/lan connection/automatic detection of settings turned on/off but I still get following error-

Server Error: 4201
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x8DE00002

I have 6 email accounts configured in the Live mail. 5 works fine but the primary email ID account keeps on giving above error.

Anyone has any solution please?