I have two gmail accounts on Windows Live Mail.  Both are setup exactly the same.  One does not send or received and I get the following error message.

Unable to send or receive messages for the Gmail (LarryWilsonMBSC) account. The email server returned an error.

Server Error: 0x800CCC90
Server Response: * OK Gimap ready for requests from 75.183.142.108 1-v6mb86932457qvf
Server: 'imap.gmail.com'
Windows Live Mail Error ID: 0x800CCC90
Protocol: POP3
Port: 993
Secure(SSL): Yes