After all of the initial issues, my account seemed to migrate well to new format, and Fidelity downloads were behaving fine in all of my accounts. Then, after a Quicken software update I can no longer connect to Fidelity. I keep getting an error code 506 with no downloads for 2 days. No accounts have been closed so not sure if the software update was a coincidence or affected this. Then as of today accounts started downloading transactions again BUT I still am getting an error code 506, against the same actual accounts that were updated.
Has anyone else experienced this issue?