Hi there, Villagrannoe18. May I know which bank you are trying to connect? This information will help me check for any ongoing updates with your bank that might be preventing the connection.
It's also a good idea to check your bank's website for any ongoing maintenance that might be causing this issue.
In the meantime, you can upload your bank transactions manually using a CSV file to keep your books updated: Manually upload transactions into QuickBooks Online.
If you have follow-up questions, please don't hesitate to click the Reply button.