Thanks for getting back to us and providing additional information about your banking issues, office-mountainc. Let's work together and figure this out.

To verify, did you receive that message when trying to reconcile an account? If so, I've got some troubleshooting steps to help get rid of the error message. 

 Try opening your account using a private window to see if this has something to do with the browser issue. You can use any of these keyboard shortcuts:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

If you can reconcile an account without getting the message, I suggest clearing your main browser's cache. There are times that your browser is full of frequently accessed page resources, causing QuickBooks Online (QBO) to act strange. Otherwise, use another supported browser as an alternative.

If it's not from reconciling an account, can you please let me know what actions are you performing in QuickBooks when this error occurs? An what's the name of your bank? Any additional details you can provide me will help to ensure a timely solution.

Please reach back out to me here with any additional information on the issue so I can get you taken care of. Thanks for coming to the Community and take care.