QuickBooks Error 6129

QuickBooks Error 6129 (How To Fix It)?

QuickBooks Error 6129

QuickBooks Error 6129 appears when the database connection verification fails, or QuickBooks tries to access the Company files. The error message states “Database Connection Verification Failure,” and you can’t access the company records. If you see the error code 6129 even after being connected to the network, there must be some network issue.

In order to solve QuickBooks error code 6129, it is crucial to know the major causes of this issue.

Let’s discuss this QuickBooks error service in more detail.

What Causes QuickBooks Error 6129 To Arise?

  • If the user has not updated the fresh release of their system running in the multi-user mode.
  • If there is a discrepancy in the client domain and the server.
  • If the user upgrades the company file to the latest version of QuickBooks with non-windows admin profile.
  • Damaged/Corrupted (.ND) Network data file.
  • Third party Antiviruses can cause QuickBooks Error 6129 to arise.

Troubleshooting QuickBooks Error 6129

#1 Solution: change the name of ‘.ND File’

  • Go to the folder that stores the QuickBooks company file and look for the .ND file.
  • Click right on the .ND file and pick the “rename” option.
  • Include “.OLD” in the name.
  • The user has to set up the QuickBooks Database Server Manager if it is accessible to many computers. Otherwise, you can access the company file.

#2 Solution: duplicate the company file to another location.

  • As soon as you generate a new folder, get into the folder that stores the company file, copy QuickBooks Error Code 6129 (.QBW).
  • Paste the QBW file to the newly generated folder.
  • If QuickBooks is there on multiple computers. Set the folder permission up. Generate a new folder in the database server manager of Quickbooks.

Steps to setup folder permission:

Click right on the folder that saves the company file and choose properties, then select “advanced in the security tab.”

Make sure the following settings are enabled:

  1. Transverse folder/ execute file
  2. List folder/ read data
  3. Read the attributes
  4. Read extended attributes
  5. Generate Files/ write data
  6. Make folders/ append data
  7. Write the attributes
  8. Write extended attributes
  9. Read permissions

How to change “not properly set up permissions.”

  • Click right on the folder that holds the company file and select the properties, then choose. “
  • Click “Edit“
  • Select ‘QuickBooksserviceUserXX‘ and ‘full’ after that.
  • Click on allow.
  • Select
  • Choose OK.

How to modify the folder permission:

  • Hold windows+E simultaneously.
  • Run the file explorer.
  • Look for the folder and access its properties.
  • Repeat these steps for each folder within the list.
  • Pick “everyone” within the Security tab.
  • If the users can not find themselves to be in a “group,” they can include one and write “everyone.”
  • Click OK.
  • Select “full control” and “apply.”
  • Choose OK.
  • You can access the company file if QuickBooks is running on one system.

#3 Solution: Restart computer in the safe mode


If the user restarts the system within the safe mode, they can prevent the interference of the third-party application in the processing of QuickBooks. On the other hand, you can also disable the third party application provisionally.

#4 Solution: make sure that “all computers” is in the same domain


In case you do not have a domain, you can contact the one who set up the network.

Through this article’s medium, we hope all your Queries are resolved, and you found the most suitable solution for QuickBooks error 6129.

Still Facing Issues With QuickBooks Error Code 6129?

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