I also have been struggling with this error trying to connect to Fidelity. I've been connecting to Fidelity for many many years as an accountant on multiple business accounts. Something seemed to have happened on February 15, 2024, from my perspective. I've tried incognito. I've called Fidelity and they don't seem to see anything on their end, nor are there any issues. I've called QuickBooks ProAdvisor help and they can't see any issues. At first when I clicked "report this issue" in QBO an email came back quickly saying it was fixed, but it wasn't. If I disconnect and try to link again, I get the Fidelity Access User Agreement popup and then I can see my list of accounts at Fidelity, but once I pick an account and it tries to connect, I get the 590 QBO error code. This has been 3 weeks now. The 24 hours and try again is hung. Anyone have any other suggestions?
