How to download and use QuickBooks Connection Diagnostic Tool

download QB-Connection-diagnostic-tool

QuickBooks is well-known accounting software that is a good fit for startups and usually small and moderate enterprises that don’t have a large staff or a large finance department. In addition, the software includes a number of applications and tools that enable users to troubleshoot numerous common faults on their own.

 One such tool is the Connection Diagnostic Tool. The Tool can help with a data file, data recovery, download, update, upgrade, and other issues with QuickBooks Pro, Payroll, and Premier.

If you’re on the hunt for a place where you can find an escort to help you understand everything in relation to the Connection Diagnostic Tool, don’t worry, you’re in the right place. In this post, we will assist you with the uses and how to download the Diagnostic Tool. So stick till the end to make the best use of this writing. 

Describing QuickBooks Connection Diagnostic Tool

Many QuickBooks users across the world rely on the QuickBooks connection diagnostic tool to diagnose and fix a wide range of sophisticated faults that occur when multiple users attempt to function on the same company file.

When you access a company file, the QuickBooks Connection Diagnostic Tool is designed to help you diagnose networking and multi-user issues. QuickBooks error code H202, H505, or 6000 series errors are the errors that have been identified. 

Only machines running Microsoft Windows Vista or XP with QuickBooks 2010, 2009, or 2008 or Enterprise Solutions 10.0, 9.0, or 8.0 are compatible with the QuickBooks Connection Diagnostic Tool.

 Few Reasons to Use QuickBooks Connection Diagnostic Tool

There can be a number of advantages with the connection diagnostic tool which has amazing features to apply in QuickBooks, let us analyze a few of the benefits. 

  • This application aids in the diagnosis of various Qb Error that occur during the installation of QuickBooks software.
  • The tool also assists users in fixing a variety of issues.
  • The major advantage is that the connection diagnostic tool saves consumers a lot of time and effort by simplifying the error-resolution process.
  • Help aids in the resolution of unexpected and multi-user issues in the QuickBooks desktop.
  • The tool also corrects problems where employees make entries that aren’t updated in QuickBooks.

List of Problems Fixed by QuickBooks Connection Tool 

There can be many issues and problems that the connection tool can resolve, a few of them are listed down below:

  • The Employees List is lacking entries.
  • Access to the QuickBooks Database Denied
  • In your accounting software, create a blank vendor and customer list.
  • Company files that are missing or have been compromised
  • A Windows firewall that has been set up incorrectly
  • QuickBooks Company files that have been damaged or lost.

How to Download QuickBooks Connection Diagnostic Tool?

Downloading and installing the Quickbooks Connection Diagnostic Tool is not rocket science and can be done by simply following the steps mentioned here:

  • The very first step is to erase in case any version of the Connection Diagnostic Tool is already in your system to avoid the issues later.
  • Go to the Intuit QuickBooks site and install the Connection Tool.
  • To begin the download process go to the official QuickBooks connection diagnostic tool download link and click it.
  • Then save the file to your computer.
  • After that, run QBInstall tool vs.exe to launch the installer.
  • Close all the programs running on your Windows.
  • Keep in mind it is essential to reboot the program once.
  • Don’t forget to agree on the License Agreement on Intuit.
  • Save the file on your desktop.
  • By doing all this make sure you have good internet connectivity.

How to Use QuickBooks Connection Diagnostic Tool?

To operate QuickBooks Connection Diagnostic Tool, open the tool on your windows screen and keep following the instructions mentioned below step-by-step.

Diagnose Connection tab

This option allows you to verify the computer configuration to confirm that the company data file is available from any desktop, either single or multi. Errors can occur if permissions are not configured properly, or if firewalls or ports are restricted.

Firewall Status

This tab provides you with the system firewall’s fundamental guidelines.

Test Connectivity

The test connectivity helps you keep a check on your windows connections.

Testing your PCs Connectivity:

  • To navigate your company file, hit the key right next to Company File Field.
  • If the network is configured on Linux systems and is in Alternate mode, choose “Change Hosting Server.”

Make sure that the status in blue shows as “Not Applicable” before running the test.

After running the connectivity test, the outcomes will be either the status will be seen in Green or Red in color, with red detecting the fault and green giving the signal that there is an issue.

  • To check all five statuses simultaneously, click the Test Connectivity icon once.
  • The Advanced section will extend to show all sections that were checked if the File Open Status displays in Red, indicating that the test failed. To understand more about the situation and what to do, click the What Do These Mean?. If you open the “File Open Status” and the error still occurs, On your screen, you will see the text “Success.”


We have provided QuickBooks users with some basic information about the Connection Diagnostic Tool, how to download and how to use them, both steps-by-steps. We hope that the article will give you insights into the practicality of this tool.