Thank you for reaching us, Andyk71258.

Let me help and make sure that you have uninterrupted access to the Accounting Center in QuickBooks Desktop.

Let's start by resetting the updates to keep your software up to date and to fix common QuickBooks Desktop issues.

Here's how:

1. Open QuickBooks Desktop. 
2. Go to the Help menu, then Update QuickBooks Desktop.
3. Click the Update Now tab, then tick the Reset Update checkbox.
4. Select Get Updates. When the download is complete, close and reopen QuickBooks Desktop.
5. Go to the Help menu, then select Update QuickBooks Desktop.
6. Choose the Overview tab, then hit Update Now.

Once done, make sure to close out QuickBooks Desktop and reopen it as administrator. To do this, simply click on the Windows start menu, search for QuickBooks Desktop, right-click and select Run as Administrator. This will allow the most recent updates to be installed properly with administrative permissions.

If the issue persists, you can check out this article and learn how to manually configure your firewall and internet security settings: Set up firewall and security settings for QuickBooks Desktop.

Let me know how this goes by leaving a comment below. I'll be here to check on your response. Take care and enjoy your day.