Check on this.
https://quickbooks.intuit.com/learn-support/global/bank-feeds/troubleshoot-issues-with-bank-feeds/00...
- Open a private/incognito browser window. If you're using Safari or Firefox go to File then select New Private Window. If you're using Chrome go to File then select New Incognito Window.
- Log in to QuickBooks and try to Connect/Update again.
