There might be a scheduled bank maintenance, djarmoluk.
The connection error you got indicates that you're unable to connect for now. The error usually disappears after 24-48 hours. Please login to your QB Self-Employed and do the usual steps in connecting your bank.
Check these articles if you encounter bank errors:
Additionally, QuickBooks will only download the last 90 days (or more) of transactions from your bank. If you need to get the older transactions, you'll want to consider uploading them manually via CSV file.
Here's how to import the file:
- Click the Gear icon, then select Imports.
- Choose Import transactions.
- Follow the onscreen steps to upload the CSV file.
- Select Import to complete the process.
Once you're done, it's time to review and categorize your downloaded bank transactions.
Let me know if you need further assistance, I'll be right here to help.