Email Stopped Syncing

Comcast emails stopped syncing yesterday.  This is happening on both the phone using a 3rd part app, and the computer using Outlook.  When I try to repair the connection on Outlook, it says "We couldn't connect to the incoming (IMAP) server using the specified encryption method.  Please check the incoming (IMAP) server encryption method and try again."  My incoming server settings are: IMAP: imap.comcast.net PORT: 993 ENCRYPTION METHOD: SSL/TLS.  Outgoing server settings are: SMTP: smtp.comcast.net Port: 587 ENCRYPTION METHOD: STARTTLS.  I am able to access my web email and through the Xfinity app.  No settings have been changed in the past month.  I updated my 3rd party application on my phone to no avail.  I installed Outlook on my phone and was unable to add the comcast email to the app and I get an Unable to login message.  I also checked to ensure Third Part Access Security was enabled.  Please help!