It's nice to have you join us in the Community, @sharla.
Thank you for letting me know which troubleshooting step you've tried to fix this issue. I'm here to provide you some information about bank transactions not automatically downloading in QuickBooks Online.
Otherwise, please verify to your bank institution a possible maintenance from their end. If not, I recommend contacting our QuickBooks Online Care Team to determine why your account doesn't bring over bank transactions.
Your bank transactions should come over after following the above information. Let me know if you're able to get your bank transactions by posting a comment if you have other questions. I'm always here to help. Wishing you continued success.