Can't sync up Capital One or Chase .... unexpected error.

Hello Prica,

Unexpected error can occur if the connection between your bank's website and QuickBooks Online is interrupted. We can update the Banking page manually to refresh the connection.

1. In the Banking page, click the Update button.
2. Enter your Multi-Factor Authentication (MFA) credentials.
3. Select Continue update.

If the same thing happens, I'd recommend reaching out to our QuickBooks Customer Care Team. They'll be able to investigate this further.

Let me know if you need anything else. I'll be around.