This has been going on for years and is incredibly frustrating. CC-501 error. I call Quicken tech support for help and they say I have to set up third party aggregator access with NYSaves, or "request third party access". I have already done both, and tested the NYSaves login credentials in a browser and they work - I see the data. I call NYSaves again, they say Quicken doesn't have permission to connect or is blocked.
Community forum after forum after forum has people struggling with this. It NEVER gets fixed. Quicken doesn't own it, and NYSaves blocks Quicken for some unknown reason, maybe its "security" requirements? I don't care. Whatever the problem, it is not a big one as many other banks and brokerage firms and 529 plans all work.
Quicken needs to get their stuff together and do whatever NYSaves wants so connections for Quicken users work.