Unable to connect to Xfinity email using Outlook 365

Yesterday I was able to access my email using Outlook 365, not today. Instead, I'm getting a popup window asking for password. I changed my password, I can access my Xfinity emails using Xfinity Connect via web. I have 4 Xfinity email accounts, only one is not working. I even removed IMAP account in Outlook, rebooted, recreate the account, still not able to connect.(attached picture)

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