How to fix QuickBooks Error Code 6129, 0 (Database Connection Verification failure)

QuickBooks Error Code 6129 0 is displayed at the time when the verification of the database connection fails or QuickBooks tries to access company files.

Because of the error, the QuickBooks user is not able to open the company file. If there is a network of problems in the software then it is vital to search for the computer or the server that holds the file.
You might see the following error messages when creating or opening a QuickBooks Deskcompanympay file.

What are the causes of QuickBooks Error Code 6129, 0?

There are various reasons that may contribute to creating QuickBooks error 6129, 0. All the computers used in multi-user configuration mode are not using the latest QuickBooks versions, because for the following reasons:

• Because of the data files having corrupted network.
• Due to mismatch between client and server domain.
• A company file upgrades to a new company file upgraded to a new version of QuickBooks Desktop using a non-Windows Administrator profile.
• Damaged network data file (.ND)

How to fix this QuickBooks Error Code 6129, 0?

Find the easy and quick troubleshooting steps to resolve the error code 6129, 0 below. You can also check out the infographics and understand the ways to fix this error easily and efficiently:
Prior to executing the solutions listed underneath, we recommend trying out a couple of things first:
Condition 1: Create 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 the “Yes” option.
• Enter a different file name, then choose the “Save” option.

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

• First of all, 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 the 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 need 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 the QuickBooks release.

Solution 1: Login as a windows administrator

• First of all, try opening a company file. Log into Windows as a “System Administrator” to update the company file required.
• In case you cannot log in as an Administrator, then find support for Windows and or an IT professional for help.

Solution 2: Disable Antivirus and Other Software in case you use Windows on Safe Mode

• Restart the computer in the “Safe Mode”
• Disable the active antivirus software.
• Create a new Company File.
• Again restart the computer in Normal Mode.
• Open QuickBooks and the Company File.

Solution 3: Rename QuickBooks Network Files (.ND)

• 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 no folder contains the required Company File, then Add a “new Folder”.
• Click on the “Scan” tab
• Click the “Close Option” once the scan is completed.
• Finally Open the “Company File”.

Solution 4: 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.
• Select on the “Scan Folders” Tab.
• In case no folder contains the required company File, then “Add a new Folder“.
• Click on the “Scan” tab.
• Click the “Close” Option once the Scan is completed.
• Finally, Open the Company File.

Solution 5: Ensure that all the connected Computers are working on one single Domain

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

Final Words!

In case you are unable to resolve the issues from the given solutions, then make sure to contact us. For more details get in touch with us now! Get in touch with our QuickBooks team for expert assistance. You can simply make a call at our toll-free number and let our experts and Certified QuickBooks Professionals fix the error for you.