Quick Troubleshooting Guide to Fix QuickBooks Error 6129, 0

QuickBooks company file stores all the financial data of a business and provides the user with an easy option to access all the business information in one single place. QuickBooks users sometimes face issues while opening or creating a new company file. 6000 series of errors in QuickBooks is related to the issues in the company file. One such error is QB error 6129, 0, which occurs while performing certain actions in the application, like accessing the company file or trying to create a new company file. Error code -6129, 0 triggers error message “Error code: -6129, 0: Database connection verification failure” to display on users computer screen. Follow the complete article and learn how to remove error 6129, 0 from QuickBooks.

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What is QuickBooks Desktop Error -6129, -0

QuickBooks error 6129 can strike anytime while working on the company data and further restrict you from accessing the company file in single-user and multi-user mode. There are several troubleshooting solutions you can implement to eliminate the error. Whenever you encounter QuickBooks error 6129, 0, the error message that pops up on the screen mentions that QuickBooks cannot verify the connection with the database. This error is triggered by various reasons that we have listed further in this article.

What Causes QuickBooks to Encounter Error 6129, 0

1. Third-party antivirus or anti-malware application interrupts QuickBooks background processes that cause error code 6129, 0.
2. QuickBooks uses a Network Data file to connect with the company file. Whenever the .nd (Network Data) file has some damage, QuickBooks encounters error 6129.
3. If you have upgraded your company file using an account that does not have administrative rights on Windows.
4. When you are trying to access the company file located on a different domain in the network.

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Points to Consider before Troubleshooting 6129 Error

1. Make sure to install the latest updates of the QuickBooks Desktop application.
2. Restart your computer and log in with an admin account on Windows.
3. Try to open a sample company file to check if the issue you are facing is just with that specific company file or the error appears with the sample file too. If you are getting the error with every sample company file, follow troubleshooting step 2 and skip the first troubleshooting step mentioned further in the article.
4. Try changing the name of your company file if the issue persists.

Steps to Remove 6129, 0 Error Message from QuickBooks

Troubleshooting Step 1: Rename Network Data file

1. From Windows File Manager, navigate to the QuickBooks installation folder.
2. Right-click the file with .ND extension.
3. Select Rename and type .OLD at the end of the file name.
4. Try opening the company file once again.

Troubleshooting Step 2: Move your Company File to a Different Location on Windows to resolve error 6129, 0

1. Copy the company file from the QuickBooks installation folder.
2. Create a new folder on your desktop.
3. Paste the company file into this newly created folder.
4. Open QuickBooks Desktop and open the company file from this new folder.
5. If the problem is fixed, it means the folder containing the company file is damaged, and you need to repair the folder to get a permanent fix.
6. If again get the same error 6129, 0, follow the next troubleshooting step.

Troubleshooting Step 3: Reboot Windows in Safe Mode

1. Restart your computer, and when the system displays the boot screen, continuously press the F8 key on your keyboard.
2. If you don’t get the Advanced Boot Options window, restart your computer again and press and hold down the F8 key.
3. Once you get the Advanced Boot Options window, press the down-arrow key, select Safe Mode with Networking, and hit Enter.
4. Log in using the admin account and try opening the company file.

Troubleshooting Step 4: Verify all Workstations are in the same Network

If the computer with the company file is located on a different network, you might face error 6129, 0. You need to contact an IT professional to check if all the computers are in the same network or contact our  Team at 1.800.579.0391 for help.

In case if you are still not able to access the company file using the safe mode, then the error is caused by some other security application installed on Windows like an Antivirus or an Anti-malware. Try removing such applications or contact the application provider to exclude QuickBooks from the scan list of such programs. If you want the help of a certified professional, then call Number 1.800.579.0391 now.