How To Eliminate QuickBooks Error 6129
                     QuickBooks Error 
6129: Relevant Ways 
To Effectively 
Remove
QuickBooks Error 6129 is a very common error in QB, which can arise while 
accessing or working on the company data file. This error prevents users from 
opening the QBW files and can arise due to a network connection failure or issues 
with the database server, among other reasons. If you are encountering the 
QuickBooks error code 6129 0, you can use the solutions mentioned in this blog 
to address the issue once and for all.
If you are unable to understand the steps or resolve the error message on your 
own, you can reach out to us at 1-855-856-0042 to get immediate assistance 
from our team of QB experts.

QuickBooks Desktop Error 6129 0: Common 
Causes & Triggers
You might be getting QuickBooks error message 6129 due to the possible 
reasons and factors mentioned below –
1. You are not using the latest QB version on the host PC and workstations, which 
is causing issues while activating the multi-user mode to access the data files.
2. There are issues with the network data file, and the ND file might be improper, 
broken, damaged, or missing from the system.
3. There is a mismatch between the client and server domains, which is leading 
to access issues while opening the QBW files in QuickBooks.
4. You are not running QB with proper admin rights, and you are using a regular 
user account to run the application and its functions.
Steps to Reliably Rectify the QuickBooks Company 
File Error 6129 0
You can permanently address the error code 6129 in QuickBooks Desktop by 
using the solutions given below –
Solution 1 – Rename the ND File and Scan the QBW Files with 
the Database Service 
You can fix the QB error code 6129 by resolving the ND file issues and scanning the 
company files.
1. Open your company file folder and locate the files with the ND extension to 
right-click one of them and select the Rename option, followed by 
adding OLD at the end of the file name.
2. Next, repeat the same steps to rename all the ND files, and once done, run 
the QuickBooks Database Server Manager from the Programs menu to 
select the Start Scan option.
3. Once the scan process ends and the issues with the QBW file are found and 
rectified, rerun QuickBooks and access the data files again.
Solution 2 – Login as a Windows Admin and Run a QB Update 
Process from the Help Tab
You need to run QuickBooks as an admin and download the latest updates to 
upgrade to the current version.
1. Firstly, right-click on the QB icon from the Start menu to select the Run as 
Admin option and access the app with proper admin rights.
2. From the QuickBooks Help menu, access the Update window by selecting 
the Update QuickBooks Desktop option, and click on Reset Updates.
3. Select the Download Updates option, and once the updates are 
downloaded, click on the Install Now button to install the QB updates and 
rerun the updated app to access the QBW files.
Conclusion
You can use the solutions given above to easily tackle the 
QuickBooks error 6129. If the error code persists, you can call us at 1-855-
856-0042 to get direct assistance from our technical support team.