We’re aware that some Quicken Classic for Windows users are seeing OL-290-B errors when connecting to multiple financial institutions, including:
We’re still investigating but, in the meantime, you can try reverting to R69 by following the steps in this support article.
https://www.quicken.com/support/reinstalling-and-patching-your-quicken-subscription-version-after-your-membership-has/
We’ll share another update as soon as more information is available. Thank you for your patience.
(Ticket 12668509/ CTP-19217)