After much reading and frustration I think I found the issue.
Noticed that most of the accounts that were not downloading transactions were Credit Cards.
Also noticed that these were all categorized as "business" accounts.
After much failed troubleshooting (including all of the suggestions by Quicken support) here is what worked.
I turned off the "Online Services."
I then switched the category of the accounts to "Personal".
I then reactivated the "Online Services"
BINGO … Problem solved …
Hope this helps!!
You all owe me a beer …