Unable to send or receive messages for the Msn (xxxx_xxxxxxxxxxxx) account.

Server Error: 0x800488EB
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x800488EB

This is affecting only one account (of 4) on one of (3) PCs and laptops. This particular PC is running Windows 7 Home Premium. All other PCs and accounts are operating normally. Have tried uninstall and reinstall, removing and replacing account and Microsoft Fix-It repairs. Nothing has worked. Problem started approximately 2:00 a.m. EST today, almost same time as Patch Tuesday Updates installed.

I can access the emails as an alias with the same account name in Outlook.com account.