Unfortunately, I had a catastrophic PC failure a few days ago and replaced the PC. In restoring the Quicken backup file, it reported numerous errors on login. It coincided with the July 10th post regarding CC-501/CC-503 errors. I started a fresh data file, and accounts are all failing to establish WebConnect. Not only the banks listed in the other post, but independent banks I use with 3rd party providers as well as Synchrony, American Express, and Citi.
Does anyone really know what's going on? Some of the banks I use don't offer CSV/QFX downloads for manual updates to try.