How To Use QuickBooks Connection Diagnostic Tool

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QuickBooks Connection Diagnostic

QuickBooks File Doctor also is known as the Connection Diagnostic Tool helps to settle issues considering common network and company file corruption errors for the QuickBooks Desktop. The QuickBooks Connection Diagnostic Tool guides users in diagnosing and correcting countless issues that barricade proper connections amidst QuickBooks application, the Database Manager, and QuickBooks Company files. This tool helps to troubleshoot the most usual networking and multi-user errors that include H-series or 6000-series errors that appear when preparing to open a Company file.

Some Information About Quickbooks Connection Diagnostic Tool

QuickBooks Connection Diagnostic Tool could be a QuickBooks software feature to troubleshoot the unexplained errors you might receive while opening a Company file in an environment where a number of users make use of it simultaneously. This can help settle the errors considering network and multi-user errors that may appear while you run a company file.


  • In case, you wish to use QuickBooks 2016, and others, you may be reminded to run the internal version of QuickBooks File Doctor. Hence, if this is the case, you are requested to use the QuickBooks version that is included in this article. This is because the QuickBooks version mentioned here is the most updated version and has the highest chances of resolving your issues.
  • Also, please note that QuickBooks File Doctor only runs in QuickBooks Desktop for Windows. It is not adaptable to QuickBooks for Mac.

QuickBooks Connection Diagnostic Tool Infographics

Particularly with both H series errors and 6000 series errors such as 6000 83, 6000 77, 6000 80, 6000 304, the tool supplies some proper connections amidst the application, the QuickBooks Database Manager, and QuickBooks company records.

The QuickBooks Connection Diagnostic Tool works only with computers running Microsoft Windows 7, Windows Vista, or Windows XP with QuickBooks 2008 and newer or QuickBooks Enterprise Solutions 8.0 and newer.

You may download and access the QuickBooks Diagnostic Tool to resolve error texts you might receive when you install QuickBooks Desktop. This one is related to office tools and therefore are usually known as NetDiagTool.exeQBServerUtilityMgr.exe etc. However, the most widely known version of this specific software is 4.0. Built-in antivirus checked this download and marked it virus free. The 4.0 version offers a free download system.

You May Also Read: QuickBooks Desktop Error 3371, Status Code 11118

Issues QuickBooks Connection Diagnostic Tool can Fix:

  • Unable to use QB and connect it to the database.
  • In case, you are not able to understand which Firewall port should be opened.
  • QuickBooks Database connection problems.

How to Use QuickBooks Connection Diagnostic Tool:

Download and extract the QuickBooks connection diagnostic Tools, as explained at the download the device tab. Double-click on the connection diagnostic tool icon to access the device, and then follow the given instructions considering troubleshooting:

Diagnose Connection tab

This tab enables you to examine the computer set up to ensure the company file can be made use of from a computer, whether arranged as single-user or multi-user. If permissions are not put in properly, or if the firewalls or ports are blocked, errors can be found.

Firewall Status

The Firewall Status area showcases the basic instructions regarding the Firewall.

Test Connectivity

The Test Connectivity area authorizes you to examine and scan your workstation’s connectivity.

To test your computer’s connectivity:

  • Click the button closer to the Company File field to locate your Company file.
  • Use Linux systems only when the network setup is in Alternate mode; you may select the Change Hosting Server check box.
  • It is also important to note that before you access the connectivity test, all statuses occur as “Not Applicable” in Blue.

Finally, after you run the test, the statuses will appear in green (no threats found) or Red (Problem detected.)

  • Now, press the Test Connectivity
  • In case, the File Open Status occurs in Red indicating that the test has failed, the Advanced section will broaden to show all places that were checked.
  • Now you may click the What do these mean?
  • When you have fixed the relevant statutes, run the tool again to check for any further issues.
  • When the File Open Status, you will find that the successful message happens to appear on the server, repeat above all steps to each client computer that has QuickBooks installed.

QuickBooks Connection Diagnostic Tool is arranged to automatically identify and fix issues with these components:

  • Net Framework
  • C++
  • MSXML 

Solution 1: QuickBooks Install Diagnostic Tool to troubleshoot Microsoft.NET, MSXML, and C++ issues.

Solution 2: Try using a Windows Update to install the lost updates pertaining to .NET Framework, MSXML, and C++.

Solution 3: Resolve issues with Microsoft components manually.

Solution 4: Prepare to install QuickBooks in Selective Start-up.

Seek help for QuickBooks Diagnostic Tool

The most widely recommended software version which is easily available on a few sites is 4.0 version software. A few years later Intuit launched QuickBooks File Doctor that has a more powerful tool and some advanced features.

In case you have further queries regarding the same, feel free to contact at QuickBooks Error Support Phone Number +1-877-263-2742 for help.

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