Hey there, matthewamo.

Thanks for following this thread. We’ll have to turn off the Don't allow any applications access to this company file option to prevent any apps from blocking the connectivity.

I’m here to guide you through the process. Let’s open the company file and configure the settings.

1. Go to the Edit menu at the top to select Preferences.
2. Tap Integrated Applications on the left panel.
3. Then, choose the Company Preferences tab.
4. Uncheck the box for Don't allow any applications to access this company file.
5. Hit OK and then OK to close out the Preferences window.

Check out this article for more insights into this process: Block applications from accessing the QuickBooks company file.

You can also end the non-responding program in the Task Manager. Here’s how:

1. Then, right-click on the taskbar and select Start Task Manager.
2. Go to the Processes tab and highlight the programs that start with .qbo, QuickBooks, or Intuit.
3. Hit the End Task button.

I’m also adding a guide that provides an overview of the added security in your company file and other enhancements in QBDT: Release notes.

Don’t hesitate to visit the Community again if you have any clarifications or other concerns. I’ll be around to answer them for you. Have a great day ahead.