I understand how important it's to connect the bank to QuickBooks Online, @blale, @jemiller02, & @SiteArcade. Allow me to suggest an alternative method for all of you to review your account transactions quickly.

We're currently investigating the Novo bank error 103. Our engineers are tirelessly investigating this experience and exploring the root cause. If you haven't already called our customer service department to be included in the list of affected users, I'd advise doing so. 

Here's how: 

1. Go to the Help menu, then click Contact Us.
2. Type your concern in the box and tap Let's talk.
3. Choose either Get a call or Start a chat.
4. Complete the required data and submit the request.

Make sure to reach them within business hours to ensure a swift response. Rest assured that the QuickBooks team will send an email once the issue is fixed.

As a workaround, I'd recommend importing the bank transactions manually. This way, you can categorize and reconcile the account regularly. 

Follow the steps below: 

1. Sign in to your bank website and follow the instructions to download your transactions as a comma-separated value (CSV) file.
2. Go to the Banking tab on the left side.
3. Click the Link account drop-down and choose Upload from file.
4. Tap Browse and pick the data.

        5. Review all the fields, then tap Next.

        6. Click Let's go to complete the process.

For more information, check out this article: Manually upload transactions in QuickBooks.

Furthermore, visit these articles below on how to resolve upload and bank errors in QuickBooks: 

• Fix bank upload errors in QuickBooks Online
• What to do if you get a bank error or can't download transactions in QuickBooks Online?

I'd be happy to listen and help if there are other problems with your banking transactions. Please leave that in the comment section below, and I'll get you back shortly. Be safe everyone.