You've done a great job in trying to fix the error, leerph.
The Error -6819,-816 is usually caused by multi-user network issues. If you've tried all the solutions here, then I recommend contacting our Customer Care Team. They have the necessary tools to investigate what's causing this behavior.
Here's how you can reach them:
- In your QuickBooks Desktop program, go to Help > QuickBooks Desktop Help.
- In the Have a Question window, click the Contact Us link at the bottom.
- From the Contact Us page, select any topics.
- Under Here's how to connect with a QuickBooks expert section, click the Start a Message or Get Phone Number button.
Please keep me updated of the result. I'd like to make sure this is resolve for you. Take care and stay safe!