Thanks for joining in this thread, J-J-M.
It's good to hear you were able to check with your bank and found there are no issues on their end. Usually, the error 102 you've received occurs when the bank's website has system maintenance or has server issues.
We'd recommend trying to edit your sign-in information too in QuickBooks Online. Here's how:
- Click on the Banking or Transactions tab.
- Click on the bank account, and click the Pencil icon.
- Click on Edit sign-in information.
- Manually enter your banks log in credential.
- Click on Update.
Check if the transactions are updated or not. If the issue persists, we'd recommend contacting our Customer Care Team so they can check your bank connection in a secure form.
In the meantime, you can manually upload your bank transactions using CSV file format. Here's an article for more detailed steps: Manually upload transactions into QuickBooks Online.
If you have other questions about QuickBooks, feel free to reply on this thread.
