Hello there, Bachoglider.
It's possible that your bank is doing some maintenance, or this error is caused by a browser-related issue. We can do some troubleshooting steps to fix this.
Let's open your QuickBooks company in an incognito window or private browser.
Here are the keyboard shortcuts:
- Chrome: Press Ctrl + Shift + N
- Mozilla Firefox: Press Ctrl + Shift + P
- Internet Explorer: Press Ctrl + Shift + P
- Safari: Press Command + Shift + N
Then, try connecting your bank account again. If it's successful, the next step is to clear your regular browser's cache. If not, let's try using a different browser.
If you still get the same result, here's an article for other solutions: Fix Online Banking Errors in Quickbooks Online.
Alternatively, you can use the WebConnect feature to upload your bank transactions manually.
Feel free to reach out to me if you have any additional questions. Thanks.