Hello there, RBu.
I'd love to help you with your concern about connecting to the Capital One bank. However, I need more information about what region and type of QuickBooks you're using right now.
If you're using the US version, we have ongoing issues with connecting a Capital One bank account through the Express Web Connect feature. Our engineering team is diligently working to resolve the issue.
You can add more details about your concern by clicking the Reply button below. I hope to hear from you soon.