how to access comcast emails with my laptop windows 11 microsoft 365 Outlook Classic after endless popups prompts for password

I have been using my new laptop for about a year, no problems during that year with my Outlook accessing my Comcast email account.  Then at the one year anniversary, and my non-renewal of the included installed McAfee security software, my Outlook can no longer retrieve the Comcast emails.   The popup prompt for the email password is endless.   I don't know if this is occurring due to the nonrenewal or just coincidental.  But either way I need a solution to the issue.    

When I go to the my computer's Control Panel settings for email in the Microsoft Outlook section, and do a "repair" of the account for xx@comcast.net, after trying to repair/fix, it returns with this message:  "An encrypted connection to your mail server is not available".

Please advise how to resolve.  Thank you.