# QuickBooks Error 6129: Fix the Company File Error
**[QuickBooks Error 6129](https://dataservicesolutions.com/blog/QuickBooks-error-6129-db-connection-verification-failure/)** typically occurs when a user tries to create a new company file or open an existing one. It indicates a problem with the database connection or when the system cannot access the company files. The error may stem from incomplete installation, corrupted company files, or network problems. To resolve this, users can update QuickBooks to the latest version, ensure proper network configuration, or restore a backup.

>If the problem persists, consulting QuickBooks support or utilizing the company file diagnostic tool may be necessary to diagnose and fix the underlying issues causing error 6129. Make sure to use **855-955-1942** for any support you need on this issue.
## What are the causes for QuickBooks error 6129?
Addressing these issues through appropriate troubleshooting steps can help resolve QuickBooks Error 6129.

* If the QuickBooks installation process is not completed correctly, it may lead to errors.
* Damaged or corrupted company files can trigger Error 6129.
* Problems with network settings or a weak network connection can result in this error.
* Running multiple instances of QuickBooks Database Service on the same computer can lead to conflicts and errors.
* Settings in firewall or security software may block QuickBooks from accessing necessary files or components.
* Using an outdated version of QuickBooks may cause compatibility issues and errors.
## Resolving your problem is easier when you use the solutions given in the next section
### Solution 1: Try renaming the Network Data file on your system
Renaming the Network Data (.ND) file in QuickBooks can sometimes resolve issues related to network connectivity and data access.

* Look for a file with the same name as your company file but with a .ND extension.
* If your company file is named "MyCompany.QBW," the corresponding .ND file could be "MyCompany.QBW.ND."
* Right-click on the .ND file and choose "Rename" from the context menu.
* Change the file extension to something like ".ND_OLD" (e.g., "MyCompany.QBW.ND_OLD"). When prompted to confirm the file name change, click "Yes" or "OK."
* Open QuickBooks and try to access your company file again. If your company file is used in a multi-user environment, there might be multiple .ND files. Repeat the renaming process for each of them.
* QuickBooks automatically recreates the .ND file when you open the company file. This process helps update network information.
* If the issue persists, consider checking your network settings, ensuring proper permissions, and verifying that the hosting settings are configured correctly.
### Solution 2: Copy your company file on your desktop
Copying your QuickBooks company file to the desktop is a common troubleshooting step and can be helpful in resolving certain issues. However, it may not address all problems, and additional troubleshooting may be required based on the specific nature of the issue.

* Navigate to the folder where your QuickBooks company file is currently stored.
* Right-click on your QuickBooks company file (with a .QBW extension) and choose "Copy" from the context menu.
* Minimize or close any open windows to access your desktop. Right-click on an empty space on your desktop and choose "Paste" from the context menu.
* This action will copy the company file to your desktop. If you want to keep the original file in its location, you can choose to rename the copied file on the desktop.
* Right-click on the copied file, choose "Rename," and provide a new name. Launch QuickBooks on your computer.
## Conclusion
QuickBooks Error 6129 points to database connection issues during company file creation or access. To resolve, update QuickBooks, check network settings, or restore backups. For persistent problems, seek assistance from QuickBooks support or utilize diagnostic tools. Timely troubleshooting ensures smooth financial management and data accessibility in QuickBooks. **Call our experts at (855)-955-1942** so that you can get rid of the problem once and for all.
**Read More blog - [Suitable Solutions to Fix QuickBooks Error 15203](https://hackmd.io/@imoscarjoe/quickbooks-error-15203)**