QuickBooks is a popular accounting program that is an alternative for startups to small and medium-sized firms that do not have a large workforce or a robust finance department. It is known to save time and resources for its customers while still increasing their productivity. Besides, the program incorporates plenty of applications and resources that permit its users to troubleshoot several typical errors on their own. One such tool that is popularly used is the QuickBooks Connection Diagnostic Tool. 

The Connection Diagnostic Tool QuickBooks is known to assist in the resolution of a wide range of errors in QuickBooks Pro, Payroll, and Premier including data files, data recovery, download, repair, and upgrade, among several other things. If you’re looking for a comprehensive guide on how to download, install, and use QuickBooks Connection Diagnostic Tool, you’ve come to the right place. 

In this blog, we will go over all the minor details about QuickBooks Connection Diagnostic Tool.


When to use the connection diagnostic tool for QuickBooks?

If you are experiencing any of the following errors or issues in your software, you can use the QuickBooks Connection Diagnostic Tool 2019, 2020, or any latest version to fix these issues.

  • Whenever the error is related to the non-functioning QuickBooks Database Server Manager.
  • Misconfigured Windows Firewall according to the QuickBooks version installed on the computer.
  • It can likewise fix damaged or corrupted QuickBooks company files that restrict the users from accessing the company files.
  • You can make use of this tool to troubleshoot the error if the Vendor list and Customer list are empty in QuickBooks.
  • It likewise comes in handy when you make some changes in the entries, but they are outdated.
  • QuickBooks Connection Tool can also fix the errors in Multi-user mode & 6000 series.
  • At the point when the QuickBooks performance is impacted because of virus or malware.


Errors that can be fixed utilizing the QuickBooks connection diagnostic tool

The following are all the major issues that you can fix by using the QuickBooks connection diagnostic tool

  •  All the network errors in QuickBooks Database Server Manager.
  • QuickBooks Error 6000 - series, such as 6150, 6000-82, 6000-301, 6147, and 6103.
  • QB multi-user mode errors such as QuickBooks error H202, H101, H303, and H505.
  • Firewall port issues in Windows.
  • Damaged files in the Windows Registry.
  • Missing QuickBooks files that are afflicting connection with the workstations.


Steps to download QuickBooks connection diagnostic tool

QuickBooks diagnostic connection tool download process is depicted exhaustively beneath. The following is the step-by-step guide for a smooth download. 

To stay away from any technical glitches, make a point to have a steady internet connection:

  • First and foremost, download the Connection Diagnostic tool QuickBooks from the official website.
  • Then, make sure to save the mentioned file in the system.
  • From that point forward, you need to open the installer named QBInstall_tool_vs.exe.
  • Now, make sure you consider shutting all the programs running in the background.
  • To begin the installation, click on QBInstall_tool_vs.exe.
  • Further, you need to reboot the program and head to the next step.
  • Once done, remove all the background applications.
  • Finally, the software will eliminate all the errors that are there in your system.


Also Read: QuickBooks File Doctor: How To Repair Damaged Company File and Network Error


Step to install QuickBooks connection diagnostic tool

Since you have downloaded the tool, make sure you need to install it. For that, make sure you follow the steps that are listed below:


  • Before you start, ensure that there is no outdated version of the tool available. If present, you must first uninstall them. Else, it will hamper the smooth working of your system.
  • Now, consider visiting the OEM site and then downloading the installation package. Moreover, you should likewise take out the files from the system.


  • After that, open up the setup and ensure to follow the on-screen instructions.
  • When the installation process finishes, you should open the tool so that it can start automatically.
  • Further, head to the directory that takes up your affected company file with the drop-down list’s help.
  • You needn't bother with the network connectivity option assuming that a single user is making use of the software. Many issues emerge because of corruption in the company file. In any case, network issues could be the reason behind the occurrence of any error.
  • When the message box appears on the screen, enter the admin password and tap on OK.
  • From that point onward, select whether you are utilizing the host system or a workstation PC.
  • Last but not least, wait till the company files repairs as the Connection diagnostic tool may take some time.


Steps to setup QuickBooks connection diagnostic tool 

The following are all the steps that one needs to follow to set up the Connection Diagnostic Tool:

  • First and foremost, tap on the QuickBooks desktop icon.
  • Then, at that point, you don't need to right away open the corrupted file instantly.
  • Explore the Utilities> Repair file> Network issues.
  • Tap on Yes to allow collecting the personal information related to QuickBooks and its data. Your data is already provided in the pop-up message that doesn't show.
  • Head to the folder that stored your company file and opens the one that is impacted.
  • Presently, select the Show Advanced settings options, and a list of items in a drop-down will show up on your screen.
  • From that point forward, select the issue that you are confronting.
  • Then, at that point, enter the legitimate QB login ID and Password and pick the QB connection diagnostic tool.
  • Wait till the time diagnoses are complete, and your company file is fixed.
  • When your file is repaired, re-open it and go on with the work.


How to make use of the connection diagnostic tool for QuickBooks?

The following are some of the pointers which you can try using Intuit QuickBooks connection diagnostic tool:

  • Diagnose Connection Tab: It enables you to check the system setup and assures that you can use the company file on any other system, whether it is a single-user mode or a multi-user mode. Such errors might pop up in the event that you don't have appropriate permissions or on the other hand assuming your system firewall is blocked.


  • Firewall Status: It will advise you about the fundamental guidelines regarding the system firewall.


  • Test Connectivity: It will help you analyze and examine the network of your PC system.


Also Read: QuickBooks Unrecoverable Error: A Complete Troubleshooting Guide


Benefits of QuickBooks connection diagnostic tool

  • It assists you with settling a few QuickBooks errors that might happen at the hour of  QuickBooks installation.
  • Some of the issues might resolve naturally with its utilization.
  • It diminishes a ton of your fixing time and effort.


Bottom Line 

The QuickBooks Diagnostic Connection Tool is an astonishing tool that is easily available to every user around the world free of cost. It helps in settling issues connected with common network and company file errors. It majorly works for troubleshooting the general networking and multi-user errors that can come up when you try to open a Company file. We have tried to bring the best knowledge related to the QuickBooks connection diagnostics tool in a nutshell and hope to make you understand every aspect of this tool in the easiest way possible .