Outlook repeatedly prompts for password

This issue started about 4 weeks ago.  

* I get prompted for password on my 2 comcast accounts.  Does not occur on my gmail account.  One I click OK, emails flow as normal

* I'm running Win11, Outlook 2024 desktop (not 365).  Problem also occurred on Outlook 2016 desktop.

* Problem seems to be related to auto-sync, which is currently set to every 5 minutes.  Problem does not seem to occur when manually resyncing

* Removed and readded comcast accounts

* Deleted OST files

* Deleted outlook credential in windows credential manager.

* Cleared Outlook cache

* Checking or unchecking the remember password save button has no affect.

* 3rd party apps is enabled on comcast accounts.