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QuickBooks Diagnostic Tool: Fix Network and File Error

QuickBooks Diagnostic Tool

QuickBooks Diagnostic tool is free software provided by Inuit. Through this tool, users can diagnose network and company file errors. These errors can then be fixed by it. If there is an irrecoverable error, or the company file is damaged, the QuickBooks Diagnostic tool will not be able to fix the underlying issue. This is free software that can be downloaded via Intuit’s website.

When to use QuickBooks File Doctor?

QuickBooks File Doctor can be used for diagnosing multiple errors including, but not limited to:

  • Network Errors: Network errors can arise due to a dysfunctional internet connection or a blocked IP address. Errors such as QuickBooks errors H101, H202, H505, and H303 are some of the most common QuickBooks network errors.
  • Company File issues: Network errors can be easily resolved but company file issues are notoriously known for their complexity. They are a serious threat to company file data. Error series -6000 is one of the most frequently encountered company file errors. Underlying issues for these errors can be disparate and difficult to identify, even by this tool

Network Errors

Complications with a network connection are usually the most common underlying cause of network errors. Check whether or not your internet connection is running properly. Windows 7 and above recognize the IP address for the network connection automatically. You should consider setting a static IP address by going to the Network menu. You can get the address from your Internet Service Provider.

QuickBooks requires access to various ports to connect to services. In many cases, these ports are blocked. You can unblock these ports by going to Windows Firewall with Advanced Security. Here, you need to set inbound and outbound rules for the QuickBooks executable file. You can also contact your ISP and get QuickBooks unblocked from their ports.

Company File Issues

Company file issues are a direct threat to the accounting data of an organization. You should back up all the data as soon as you see something amiss. Only after backing up the data, run the QuickBooks diagnostic tool.

Download the link for QuickBooks Diagnostic Tool. Before installing this tool, make sure that you have .NET framework 3.5 pre-installed on your system. Here’s a link for the .NET framework 3.5.

Steps to Diagnose & Fix Errors with QuickBooks Diagnostic Tool

Here below are the most recommended steps to diagnose & resolve the QuickBooks errors with the diagnostic tool…

Total Time: 8 minutes

  1. Step One

    Open QuickBooks Diagnostic Tool

  2. Step Two

    Hit browse

  3. Step Three

    Select the company file and click on scan

  4. Step Four

    Click on Both File damage and Network connectivity. QB will first search for any network errors. If no network errors are found, then the tool will start the scan for the company file. The time taken to scan the entire company file will depend on the size of the company file.

  5. Step Five

    Select workstation or server

How to Download & Install QuickBooks Diagnostic Tool

Below are the means to download and install the Diagnostic Tool:

  • First of all, open or go to the QuickBooks Tool hub 
  •  Then find the QuickBooks Diagnostic tool and click on the download 
  • Then, you have to set up the record in the system. 
  • Click on the Save button to set up the record on the Desktop. 
  • After the download, you will see the ‘QBInstalltool_v2.exe’ on your screen. 
  • Presently shut down any remaining applications that are right now running all the while in the system. 
  • Double-tap on ‘QBInstall_tool_v2.exe record’ and run the document in your system. 
  • Restart the system once the diagnosing process is completed 
  • Ensure that you have a decent ‘Web Connection’ for smooth 
  • Close any remaining applications working/running behind the scenes. 

QuickBooks installs diagnostic tools that will consequently distinguish and fix the error. Yet, a frequent system reboot is required. intended to consequently distinguish and fix errors, nonetheless, in a few situations, you may have to ‘Reboot’. 

Fix Installation Errors by utilizing ‘The QuickBooks Install Diagnostic Tool’ 

See below and focus on fixing installation errors using ‘QuickBooks Install Diagnostic Tool’:

  • Verify and diagnose the Connection Tab: Utilize this tab to look at your system. Also, this tab will help you in setting up the QuickBooks company information document. 
  • Check and ensure the Firewall Status: Install Diagnostic tool QuickBooks gives significant information on the Firewall status. You can make the fitting move according to the data. 
  • It tests your Connectivity: Therefore, It helps in dissecting your workstation network. Henceforth, the installation of the actual tool requires a smooth. 
  • Do a Reinstall in a Selective start-up mode: Now and then, outsider applications, for example, are against infection and hostile to spyware programs. It might make an issue with QuickBooks Desktop Installation. Thus, to amend it is imperative to do the installation in a particular mode. The mode will start the windows with a few chosen things running in your system. 

After implementing the above steps, go with the below-mentioned instructions: 

  • Firstly, start the system in a normal start-up mode. 
  • Then, press the Windows+r simultaneously to open the ‘RUN’ order. 
  • Now, you have to write the ‘msconfig’ and click OK 
  • Go to the general Select ‘Hide all Microsoft Services’ 
  • Thus, pick the ‘disable all’ alternative. 
  • Presently, unmark the ‘Hide Microsoft services’ checkbox. 
  • Presently, checkmark the ‘rundown of services’ and select the ‘Windows Installer checkbox’. Guarantee to stamp this and press OK.
  • After this, Go to the system arrangement and pick ‘Restart’. 
  • To restore the system to its normal configuration.
    • Press the Windows+R key together to open the ‘RUN’ order. 
    • Presently type in ‘msconfig’ and press OK 
    • Presently in the ‘General tab,’ pick ‘Normal start-up’ mode and click on OK 
    • The final step is to go to the system setup screen and click Restart to check whether the issue is resolved or not.

Once the scan is finished, the tool will start fixing the errors. In case the tool is unable to fix the error you are encountering, then feel free to contact our certified QuickBooks technical ProAdvisors.

Related Post – Fix: QuickBooks Error 1911


  1. Is the diagnostic tool part of the Tool hub and how it works?

    Yes, the diagnostic tool is part of the QuickBooks tool hub. It helps in fixing all the company files and network-related problems that you face in your QuickBooks account. QuickBooks tool hub has many tools in it for resolving different errors or issues.

  2. How to run and fix the QuickBooks Diagnostic Tool?

    1. Open the QuickBooks Diagnostic tool
    2. Check and then diagnose the Connection tab
    3. In the connection tab, check connectivity
    4. Then check the status of the Firewall
    5. You have to re-install in the selective mode.

  3. What errors can be resolved by the QuickBooks diagnostic tool?

    The errors that can be resolved by the diagnostic tool are as follows:-

    1. Microsoft .NET Framework issue
    2. Corrupted C++-related errors
    3. QuickBooks error code 1904
    4. ABS PDF driver error
    5. QuickBooks error code 1722
    6. QuickBooks error code 1712
    7. MSXML damage errors and more.

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