There are a few reasons for unexpected banking issues in QuickBooks Online. Please check the list below.
The bank recently made some changes with their security feature or connection.
Log in credentials set up in QBO doesn't match with the online banking login.
QuickBooks Online is unable to connect to your bank's website.
To sort this out, I recommend performing some troubleshooting steps below.
First, I suggest clicking the Update button since your bank accounts have not updated in QuickBooks. This way, you're able to refresh the connection of the bank to see the latest updates.
Here's how:
1. Click Banking at the left panel. Then the Banking section.
2. Click to highlight the account you're updating, then hit the Update button.
Next, if the issue persists, you'll need to check your bank's website. There may be an issue on their end and it loses connection with QBO every time there are updates.
Go to the Banking tab.
Select on Add Account.
Search for your bank and click it.
Select the URL listed in the window.
Sign in using your bank website username and password.
Check your account page for messages, notifications, or alerts. Any display or login issues on the bank’s end can block downloads.
Also, check your bank’s website for any new security requirements. Even something as simple as updating your bank password can block QuickBooks.
If everything looks good, go back to the Banking tab in QuickBooks.
Select the blue tile for the bank account.
Hit Update.
If the problem continues to occur, you'll have to manually import your transactions. You can click this article to see the steps: Manually upload transactions into QuickBooks Online. After that, transactions from your accounts will add to your Online Banking.