Hi conkandco-outloo,

I understand how important it is to establish a bank connection in QuickBooks Online. We are aware of this issue and our engineers are still working on for a fix. As a workaround, you can import your bank transactions in CSV format. Also, you may check on the Banking page to see the list of banks supported for connection in QuickBooks Online.

Also, I would recommend you to contact our customer support team to have your account added on the affected list and for you to receive a real-time update or progress on this reported banking issue. 

Feel free to post again if you have any other questions. Thanks!