Hello @jthomasson,

I appreciate you for disconnecting and reconnecting your bank accounts so you can connect them with QuickBooks.

You should be able to connect your banks after entering the 6-digit codes. Let's perform another troubleshooting steps by connecting your banks through a private browser. There are times that the browser is full of frequently accessed page resources. Thus, causing the page to loop when entering codes. As an alternative, you can use another compatible browser to isolate the issue.

When that works, you can then delete cache and cookies from the regular browser. This is to help clear the data you've previously accessed and stored on the browser's preferences.

If you're getting an error 185, I recommend contacting our QuickBooks Online Technical Team so they can add your account to the investigation. By doing so, you'll be able to receive an update once the issue is resolved. 

Let me know how everything turns out after performing the solution above. I'm always around to provide the information you need.