My app will not connect to my bank it keeps saying authentication failed

It's my pleasure to help reconnect your bank account to QuickBooks Self-Employed, @userabia8.

Since you're using a mobile app, you can follow some troubleshooting steps to isolate this issue and get this working on your mobile. Here are the things that you can do: 

• Restart your phone and launch again the app. 
• Update your phone's operating system.
• Uninstall/Reinstall the application.

The steps will help you refresh the compatibility of the application to your mobile phone.  

Reach out to me whenever you have additional questions or concerns. I'll always have your back. Take care always!