Troubleshooting techniques for the QuickBooks error 6129

by Alena Yadis Quickbooks Error Support

You may encounter the QuickBooks error 6129 when you open the Company files on a database connection verification failure. It appears with an error message stating the verification failure and restricts you from accessing your file. If the error appears when you are already on a network, the issue can be a failure to locate the server. In this blog, we will discuss the reasons why the QuickBooks error 6129 occurs and the methods that can be applied to troubleshoot it.

If you get the QuickBooks error 6129 while trying to open the company file in QuickBooks, you may need an expert for its resolution. You can call us at our (800)-417-5147 and talk to a QuickBooks expert.

Reasons prompting QuickBooks Database Communication error 6129

Let us analyze the various reasons that can prompt the QuickBooks Database communication error 6129:

If you are running QuickBooks in multi-user mode and you have not updated the application to the latest update, you can get the error.
The error 6129 might appear in case of a mismatch between the client domain and Server.
A corruption or damage in the Network Data(.ND) files can cause the error.
If you have upgraded your QuickBooks as a non-admin Windows user.
A third-party application may interfere with your QuickBooks causing the error.

Now, we understand the reasons that can cause the QuickBooks error 6129. Let us look at the troubleshooting methods for the error.

How can you fix the QuickBooks Company File access error 6129 0

You can resolve the QuickBooks Company file access error 6129 0 through various methods. The most effective method is to rename the Network Data file so that QuickBooks can create a new file without any corruption. Follow the steps provided below to resolve the error:

Open the QuickBooks Program file folder in the C drive of your computer.
Locate the (.ND) file through the ‘Search’ option.
Right-click on the file and select the ‘Rename’ option.
Add the word.OLD at the end of the file name and hit the ‘Enter’ key to save it.

You should check if the error is resolved. If the error persists, then you need to set up folder permission.

Method 2: Setting up the folder permission

Open the location in your computer that has the Company File saved in it.
Right-click on the folder containing the file and select ‘Properties.’
Go to the ‘Security’ tab and then click on the ‘Advanced’ option.
Select QBDataServiceUserXX and click on ‘Edit.’
Make the necessary changes and then press the ‘Ok’ button.

In this blog, we discussed in detail the QuickBooks error 6129. We explained to you the reasons that can cause the error and the methods that can be applied to troubleshoot it. You should be able to resolve the error easily using the methods stated above. If you still come across the error and you feel the need for an expert for resolution, contact us at our (800)-417-5147.

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