Inman Lanier said: HOW DO WE GET THIS IDENTIFIED AS A PROBLEM?!?!?!
If your bank recently required you to reauthorize your account and/or your bank has changed from "Direct Connect" to either "Express Web Connect" or "Express Web Connect+" you can no longer use Online Bill Pay direct to the bank or Quicken Bill Manager's Quick Pay function. Several banks no longer support this function through Quicken, more banks to convert soon.
Alternatives:
I've been using a variation of method #3 for decades, since before the Internet and dial-up were even invented. It's easy to get used to this process. And I have yet to miss a single payment.