American Southwest Credit Union - CC-508 started 3/18/2026

ForeverUser

Quicken Classic R66.28 on Windows 11 - transaction download from American Southwest Credit Union (ASCU) has been working fine since June/25 up to 3/17/2026. 3/18/2026 - started receiving CC-508 error. Logging into the institution web site did not show any pop-ups or any other issue that needed attention - pop-ups are enabled for the site in the browser. Account was reset in Quicken and now requires activation of one step update. All attempts to activate one step update result in CC-508.
The only thing I see that is a problem is on the ASCU web site under Security, there is a list of registered devices and there is a device named "Mac OS - Intuit" with a status of "Device Blocked". The only option available for the "device" is to rename it. No option to unblock or to delete.

ASCU Support indicates that since Quicken is a 3rd-party product, there is nothing they can do.

Is anyone else running into a similar problem or have any suggestions on how to get transaction downloads working again?