For some time now, I have not been able to add a Schools First FCU account. It was working for years but recently, it stopped working. I have about 7 accounts and, one by one, for whatever reason, I had to reset the account. That's when I started to receive the error CC-503. All but one account continued to work. I have tried all the things others have experienced, and still, I cannot connect my now-offline accounts. I contacted Schools First FCU and they tell me they don't work with 3rd party apps. I know that to be false, because at least one account continued to work until today. Quicken, please help.
Version: R69.25
Windows 11 Home version 23H2