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QuickBooks Error 6129, 0

QuickBooks Error 6129, 0

With QuickBooks company file, you can keep all your financial information in one place. You can also access it without difficulty from anywhere on the planet. However, when attempting to access or create a new company file, you may encounter QuickBooks Error 6129. 

The company file error known as QuickBooks error 6129 appears on your screen along with the alert warning message “Error 6129 0: QuickBooks has encountered a problem and needs to close.” We are sorry for the trouble. When a user tries to open the company file or even while creating a new data file, the technical issue frequently interferes. 

Such a problem can be quite annoying because it prevents you from accessing all the important information you have stored in your data file. We have therefore put together this informative article to assist you in solving the issue.

The QuickBooks Company File stores all a company’s financial information and gives the user a simple way to access it all in one location. Users of QuickBooks occasionally encounter problems when opening an existing company file or creating a new one. The problems in the company file are responsible for the 6000 series of errors in QuickBooks. One such error is QB error 6129, 0, which appears when attempting to access or create a new company file, among other application-specific actions. The error message “Error code: -6129, 0: Database connection verification failure” is displayed on the user’s computer screen when error code -6129, 0 occurs. Learn how to fix error 6129, 0 in QuickBooks by reading the entire article.

Another possibility is that the database connection verification fails. The error may affect you because it interferes with your ongoing work process. You can, however, resolve the error code -6129, 0: by using the troubleshooting methods described in this blog. You will learn the causes of the error as you read the blog and then some useful methods for troubleshooting. Completely read the content for a thorough understanding.

What does Error -6129, -0 in QuickBooks Desktop mean?

When working with company data, QuickBooks error 6129 can appear at any time and prevent you from accessing the company file in single-user or multi-user mode. You can use several troubleshooting techniques to fix the problem. QuickBooks can’t verify the connection with the database, according to the error message that appears on the screen whenever error 6129, 0 occurs. Numerous factors, which we have listed further in this article, can cause this error.

What Causes QuickBooks Error 6129, 0?

  • A third-party antivirus or anti-malware application disrupts QuickBooks background processes, resulting in error code 6129, 0.
  • QuickBooks communicates with the company file via a Network Data file. QuickBooks encounters error 6129 when the.nd (Network Data) file is damaged.
  • If you upgraded your company file with a Windows account that does not have administrative privileges.
  • When you attempt to access a company file located on a different network domain.

Points to Think About Before Fixing Error 6129:

  • Install the most recent updates for the QuickBooks Desktop program.
  • Restart your computer, then sign in to Windows using an admin account.
  • To see if the problem only affects that company file or if the error also occurs with the sample file, try to open a sample company file. Follow troubleshooting step 2 and omit the first troubleshooting step described further in the article if you are encountering the error with every sample company file.
  • If the problem continues, try changing the name of your company file.

How to Remove the 6129, 0 Error Message from QuickBooks:

Have you been trying to fix the company file issue but have been unsuccessful in your search for a workable solution? View the fixing techniques that we have succinctly described in this section of the article:

Troubleshooting Step 1: Change Where Your QuickBooks Company File Is Stored

  • You must locate the folder where your data file is stored in the first step.
  • Open the QuickBooks installation folder at this point. Select “Copy” from the menu when you right-click on the data file.
  • Go to your Windows desktop next, and then right-click on a free space.
  • Additionally, place the cursor over the “New” option and select “Folder.”
  • Open the new folder you just made, then paste the business file you copied there.
  • Run QuickBooks Desktop afterward to access the data file through the new folder.

Troubleshooting Step 2: Use the QuickBooks Tool Hub’s QuickBooks Database Server Manager after downloading and installing it.

  • Make sure that QuickBooks Desktop is not running on the computer before using the Tool Hub software.
  • Visit the official Intuit website if it is currently being used.
  • Download the most recent edition of the QuickBooks Tool Hub from there now.
  • After downloading, save the file somewhere convenient where you can easily access it later.
  • The installation process can then start by opening and running the ‘QuickBooksToolHub.exe’ file you downloaded.
  • You must follow the instructions on the screen to move forward. You must also mark the appropriate checkboxes to accept the terms and conditions.
  • To finish the process, choose “Finish.”
  • Launch the Tool Hub program after that, then select the “Network Issues” tab.
  • You must select “QuickBooks Database Server Manager” from the drop-down menu, then, after locating your company file, click on the “Start Scan” option.
  • You can use the ‘Browse’ option to look for the company file if you can’t find the data file.
  • Now, the tool will find every problem and fix it appropriately.
  • After finishing, close the window and launch QuickBooks to see if the problem has been fixed.

Troubleshooting Step 3: Restart Windows in Safe Mode

  • The first thing you must do is restart your computer.
  • Continue pressing the F8 key after the boot screen appears on your keyboard.
  • ‘Advanced Boot Options’ must then show up on the screen. Keep holding the F8 key while restarting your computer if it doesn’t work.
  • The “Advanced Boot Options” window will now show up.
  • You must press the down arrow key to proceed to the next step.
  • Tap the “Safe Mode With Networking” option from there.
  • Finally, sign in using the admin account by pressing the “Enter” key one more time.
  • Launch QuickBooks now, then attempt to open your company file.

Troubleshooting Step 4: Confirm that all workstations are on the same network

If you are still unable to access the company file in safe mode, the error is most likely caused by another security application installed on Windows, such as an antivirus or anti-malware. Remove such applications or contact the application provider to have QuickBooks excluded from the list of such programs scanned.

  • Go to the folder where you have saved your QuickBooks data file first, starting from your Windows desktop.
  • You need to look for the file with the.ND extension once you’ve navigated to your company file folder.
  • Always double-check the file name. Your company’s file name will be duplicated on it.
  • You need to change the file name after you’ve found the file.
  • Right-click on the file while it is selected with the mouse.
  • Then, you must select the “Rename” option from a list of options that will appear.
  • Now, modify the file’s name by appending “.OLD” to the very end of the original file name.
  • To save the new changes, press the “Enter” key on your keyboard after that.
  • Finally, close the window you’re on and open QuickBooks Desktop to get back to your company file.


The blog post should now come to an end. We sincerely hope that we were able to provide you with all the necessary details regarding QuickBooks error 6129, 0. Contact our customer care to speak with one of our experts without delay if you run into any problems while troubleshooting the problem or if you need any additional assistance.


  1. How can I resolve QuickBooks error -6123 0?

    Using File Doctor, we can fix your company file if Quick Fix my Program wasn’t successful. Common problems with the data in QuickBooks Desktop are automatically scanned and corrected by File Doctor. Company File Issues can be found in the QuickBooks Tools Hub.

  2. What does QB error 6129 0 mean?

    Opening or creating a new company file can occasionally present problems for QuickBooks users. Issues in the company file are the cause of the 6000 series of errors in QuickBooks. One such error is QB error 6129, 0, which appears while carrying out specific actions in the application, such as trying to access the company file or create a new company file.

  3. Why does QuickBooks display a pop-up error message?

    It occurs when the system running the QuickBooks software prevents the user from making any company records or files. And as a result, when you attempt to create a new company file in the software, a pop-up error message appears on your screen. Error code: -6129, 0: Database connection verification failure, says the message.

  4. How can a QuickBooks Desktop issue be fixed?

    The QuickBooks Desktop icon’s context menu offers the option to Run as an Administrator. To ensure you have the most recent version of QuickBooks, make sure to download the most recent product updates. Depending on your version of Windows, you can try toggling the User Control settings to see if the error persists.

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