What is QuickBooks Connection Diagnostic Tool and ways to use it?

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The QuickBooks Connection Diagnostic Tool is a free and downloadable program provided by Intuit to solve the connectivity and multiuser errors with the QuickBooks software. It is used to troubleshoot errors that one might receive while opening a QuickBooks company file in multi-user mode of the application. The QuickBooks Connection Diagnostic Tool can help solving issues related to QuickBooks H505 errors and QuickBooks H202 error and QuickBooks 6000 errors. The tool is compatible with QuickBooks version 2008 and newer versions. It works only with computers running Windows Vista, 7, and XP.


The QuickBooks Connection Diagnostic Tool investigates the vague mistake that occurs while opening the company file record (.qbw) when running in the multiuser mode. It easily settles the issues simply by downloading and running the software. You can download and run the QuickBooks Connection Diagnostic Tool to fix the error that occurs while you try installing the QB Desktop. It is like a troubleshooting wizard that normally opens with any Windows computer when trying to install any software. The version 4.0 is the most popular version of the software. It is rated as the virus free tool that helps fixing the errors without disrupting the normal functionality of the computer.

The QuickBooks Connection Diagnostic Tool is useful in solving the following errors:

  • If you are not able to connect QuickBooks to the database
  • Unable to know which firewall port to be set open
  • QuickBooks database connecting issues

What are the ways to use the QuickBooks Connection Diagnostic Tool?

Simply download and install the software on your computer. Now, double-click on the connection diagnostic tool icon and run the software. After the dialog box appears, you need to follow the steps below.

How to run a connectivity test on your computer

The QuickBooks Connection Diagnostic Tool is made to automatically recognize and fix the errors with the following components.

The QuickBooks Connection Diagnostic Tool version 4.0 is the most advanced version which is available for troubleshooting the software. Intuit has also rolled-out the more powerful tool with the latest feature and named it QuickBooks File Doctor.

In order to resolve the issues that appear for unwanted reasons, it is recommended to follow the abovementioned steps diligently. And, if while trying you fail to perfume certain steps, you must contact the QuickBooks technical support team and get an expert assistance. The customer support team is available 24x7 to resolve any issue related to the software.

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