*I have verified through the Windstream email portal that I can access my email using this exact username/password, I have my phone on airplane mode to prevent overlapping the same sync schedule, gone through the repair/fix module several times, rebooted my computer several times, no clue what else to try at this point - any help please - I really don't want to change email clients?

This is the exact error:

Unable to send or receive messages for the Windstream (myusername) account. An incorrect password was entered. The next time you send or receive messages, you'll be asked to enter your user name and password for this account.

Server Error: 0x800CCC90
Server Response: -ERR [IN-USE] account is locked by another session or for maintenance, try again.
Server: 'pop.windstream.net'
Windows Live Mail Error ID: 0x800CCC92
Protocol: POP3
Port: 110
Secure(SSL): No