Toll-Free: +1-844-499-6700 [email protected]

QuickBooks error code 6129 usually belongs to the 6000-error series and is often related to the company file. This particular error is a common company file error that can be seen when accessing a company file. It can be seen for a bunch of reasons. So, if you are interested in unveiling further QuickBooks error code 6129, its causes, and fixes, scrolling through this segment will brief you with the right fixes that you need to adopt. Just in case you are not interested in performing the steps on your own, our tech support professionals can help. Get on a call with us at +1-844-499-6700 and leave the rest our QuickBooks ProAdvisors.

Also Read: QuickBooks Tool Hub Download, Fix QuickBooks Error

A Quick Brief into QuickBooks Error 6129

Before we jump onto the factors triggering this error and the fixes for the same, it is better to first understand what this error is all about. Talking about QuickBooks error code 6129, you can come across this error when database connection verification fails. You can land upon this error with a warning message i.e., “Error 6129, 0: QuickBooks pro has encountered a problem and needs to close. We are sorry for the inconvenience”. The database connection verification failure increases when you use QuickBooks to manage the company’s payroll and streamline the accounting management. Let us go through the further information about this error.

QuickBooks error code 6129 - Screenshot

Also see: How to Troubleshoot QuickBooks Error 6000 83 Code?

Signs and Symptoms of QuickBooks error 6129

There can be a bunch of signs and symptoms that can help in identifying the error code 6129. Let us have a look:

  • One of the basic signs can be if the system freezes for a couple of seconds
  • Another possible trigger can be running the same program leading to frequent system crashing
  • Also, if running the same program leads to frequent system crashes
  • You can also identify the error if the error pops up on the screen and crashes the active window

What are the Causes of QuickBooks Error 6129, 0?

There are many reasons that may create QuickBooks errors 6129, 0. Few are as:

How to fix this QuickBooks Error 6129, 0?

Below you will get the quick troubleshooting steps to resolve the Error code 6129, 0. You can also checkout the infographic and understand the ways to fix this error easily:

Fixation of QuickBooks Error Code 6129, 0 - Infographic Image

Before executing the solutions listed below, we recommend trying out a couple of things first:

See Also: How to Fix QuickBooks Install Error Code 1722?

Condition 1: You are creating a new company file:

  • Choose the “Exit or leave” option, On the easy action Interview window.
  • You need to be triggered to “Save the file“, just choose “Yes” option.
  • Enter a different file name, then choose the “Save” option.

Important: If changing the file name doesn’t work, try transforming the file location.

Condition 2: If you are opening or updating your company file:

  • Firstly, Open a sample company file to recognize if the problem is file related or not. If the issue is happening to all your company files, go with below given solution methods.
  • Log in as a Windows System Administrator before adhering to the actions in this section.

To fix the QuickBooks Error 6129, 0, there are multiple troubleshooting steps that needs to be followed. Below, we will let you know about the steps in detail as follows. However before proceeding to the given steps, make sure that all the computers used have been updated to the latest version of QuickBooks release.

Also read: What is the ways to fix QuickBooks error 15215?

Solution 1: Running clean install tool and database server manager in tool hub

Step 1: Start with clean install

At times a reinstall can fix the error, but when the reinstall doesn’t work, you can simply perform a clean install.

  • Start off by simply downloading and installing the QuickBooks tool hub program
  • Furthermore, you need to open the tool hub
  • Later on, head to the installation issues tab
  • You are now required to select the clean install tool
  • A clean installation will commence on the system

Step 2: Use QuickBooks database server manager

  • Under this process, launch the tool hub
  • Heading forward, visit the Network issues tab
  • Now, select the QuickBooks database server manager
  • The communication between the software and the server will also be improved.
  • You are now required to wait for the process to complete and reboot the system

Solution 2: Login as windows admin

 At times one might come across such an error if the user hasn’t logged in as admin. In such scenario, it is recommended to try logging to windows using admin credentials. Let us have a look:

Run QuickBooks as Administrator
  • Try to open the company file.
  • Log in as windows admin by selecting the run as admin option and update the company file
  • In case you are unable to log in as windows admin, then get in touch with the windows support IT professionals.

Solution 3: Create another folder and navigate to the QuickBooks company file

  • Start off by simply creating another file folder
  • Later on, transfer the QuickBooks company files to the new folder
  • This would make it easy for you to open QuickBooks company file using the new folder if you have been using one system
  • Just in case you are using the same file on more than one system, head to the next step.
  • Click on start tab and choose the programs option
  • Furthermore, click on QuickBooks and select QuickBooks database server manager
  • Select the scan folder option
  • In case there is no folder with the company file, then click on add folder option
  • Click on scan now tab
  • Further, you need to click on close after the scanning process completes
  • Towards the end of this process, open the QuickBooks company file and ensure whether th same is working or not.

Solution 4: Disable Antivirus and other Software in case you use Windows on Safe Mode

Safe mode with networking
Express start- QuickBooks error code 6129
  • Again restart the computer in Normal Mode.
  • Open QuickBooks and the Company File.

You may also like: QuickBooks Desktop 2023 – Pricing, Features and Download

Solution 5: Rename QuickBooks Network Files (.ND)

Rename .ND and .TLG files- screenshot
  • Firstly open the folder where your company file is saved.
  • Look on your hard drive or the system for QuickBooks files that are named with the extension “.nd”.
  • Rename the file to an old company file name by right clicking on the file and choosing “Rename”.
  • Type “.OLD” as the file extension and press “Enter”.
    • In case one has to access the same company file on multiple computers, then make sure you follow these steps for all the files.
    • In case the Company File is used on one computer only, then you can open the file right away.
  • Click on the Windows Start Button > Programs > QuickBooks > QuickBooks Database Server Manager.
  • Select on the “Scan Folders” Tab.
  • In case there is no folder that contains the required Company File, then Add a “new Folder”.
  • Click on the “Scan” tab
  • Click the “Close Option” once Scan is completed.
  • Finally Open the “Company File”.

Solution 6: Copy the company file into a different location

  • Create a “New Folder“.
  • Move the required QuickBooks Company Files to the newly created folder.
  • In case you have been using QuickBooks only on one computer, then it is easy to follow the said steps.
  • But in case you are using the same file on Multiple systems, then be sure to follow the “Next” steps.
  • Click on the Windows Start Button > Programs > QuickBooks > QuickBooks Database Server Manager.
QuickBooks Database Server Manager Tool
  • Select on the “Scan Folders” Tab.
  • In case there is no folder that contains the required company File, then “Add a new Folder“.
  • Click on the “Scan” tab.
  • Click the “Close” Option once Scan is completed.
  • Finally Open the Company File.

See Also: How to rectify QuickBooks error code 3000?

Solution 7: Ensure that all the connected Computer are working on one single Domain

  • Be sure to contact a “Network Administrator” or an “IT professional” to connect all the computer systems on one single domain.

Solution 8: Run file doctor

QuickBooks file doctor tool - error code 6129
  • The very first step is to download QuickBooks tool hub
  • After that choose the company file issue section and also choose the run QuickBooks file doctor
  • Once done with that the tool will run to diagnose the problem, and check if the issue is resolved

Solution 9: Update QuickBooks software

Often certain errors can be resolved by a simply update of the software. In case the user is making use of the an older version of QuickBooks, then updating it to the latest is suggested, as the older version can show up different errors in QuickBooks.

No company open -Error code 6129
  • You need to open the software and choose the help menu and go for the update QuickBooks desktop option
  • Furthermore, you need to click on the update now tab
Update QuickBooks
  • Select the get updates option to start the download process
  • Reboot the QuickBooks desktop
  • Perform on-screen instructions to accept the option for installing the new release

Solution 10: Run the system in selective startup mode

  • You need to first open the run window and enter MSCONFIG
Type msconfig in Run box - QuickBooks error 6129
  • After that, click on selective startup mode and also click on the General tab
  • The next step is to click on load system services and choose load startup items
  • The user is then required to click on the services tab
  • Once done with that, you need to disable the hide all Microsoft services option, check mark the Windows installer box, and click on the ok tab.
  • You now have to restart the system and reinstall QuickBooks after uninstalling it.
  • The last step is to make and save the changes in normal startup mode and reboot the system.

Also Read: Is QuickBooks Desktop Being Phased Out? 


Now that you know what steps can be performed to eliminate this error permanently, it is time to perform those steps manually and get rid of the error permanently. Just in case you do not find any of these solutions helpful, then feel free to contact the QuickBooks Enterprise support team and receive step by step guidance to fix the issues. We are easily reachable at +1-844-499-6700.

Frequently Asked Questions – QuickBooks error 6129

What is QuickBooks Error 6129?

The error code 6129 is often seen due to a failed database connection verification. It can also be seen when opening company files.

How to know if Error 6129 occurred?

This particular error is often experienced with a warning message that states: “QuickBooks pro has encountered a problem and needs to close. We are sorry for the inconvenience.

How to Fix QuickBooks Error 6129?

The fixes for Error 6154 include:
1: Disable the antivirus.
2: Rename the .ND files.
3: Update QuickBooks
4: Run QuickBooks as admin.
5: Use QuickBooks Database Server manager


Similar Posts to Read

How to fix Error 6000 77 in QuickBooks desktop?

How to Fix QuickBooks Error 404?

Steps to Resolve QuickBooks Error 6000 80

Buy QuickBooks Today!

contact our male customer

Buy the all-new QuickBooks today!

Connect With QuickBooks Experts

Dial our toll-free number


This contact form is available only for logged in users.

This will close in 0 seconds

Looking for QuickBooks Help?

This will close in 0 seconds