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How to Fix QuickBooks error 6123

Quickfix to QuickBooks error

QuickBooks is accounting software that stores and automate financial database in the company file. However, Edge is the latest browser that Windows prefer its user to use, it does not sync well with QB. Users often encounter error 6123 when they try to upgrade their company file.

The error usually appears when they try to access the company file from a backup restoring or a network server. It interrupts the entire process and wreaks havoc in the workaround. Let’s dive into it and understand what error 6123 is and how to resolve it.

QuickBooks error 6123 – Description, Cause, and Symptoms

Error Code:

QuickBooks Error 6123, 0


Intuit Inc.

Error Description:

We’re Sorry. QuickBooks couldn’t open your company file. We’ll try to fix the problem.




A file from the company has been damaged, The data files or software files in QuickBooks are damaged or corrupted.

Applies to:

Windows XP, Vista, 7, 8


The QuickBooks Desktop won’t respond or work, Window Operating system got frozen.

Possible Solution:

Download QuickBooks File Doctor, Change The Location of Your Company File in The QuickBooks

Why QuickBooks Error 6123 Occurs?

There are various reasons why this error surfaces. However, most commonly, it occurs when you cannot connect with the database server network. Here are the noteworthy reasons why it occurs in the first place;

  • It occurs when the network connection with your desktop device is lost where the system is hosted.

  • The third party internet protection service is conflicting with the accounting software.

  • The QB database service is running.

  • You change or alter the name of the host desktop system.

  • Windows is either damaged or corrupted.

  • When you restore the company file from the outer storage device.

  • Windows firewall setting creates obstruction with the functioning of the accounting software.

  • The files in the accounting software either get corrupted or lost during the improper shut down.

What happens When QuickBooks Error 6123 occurs?

When your computer encounters the error, the desktop device may behave like the following;

  • The accounting software either stops working properly or stops responding to the commands.

  • Windows operating system gets frozen and comes to a halt.

  • When you click something using your mouse, it either takes too much time, or doesn’t respond at all.

  • The QB software keeps crashing or freezeing and stops functioning.

  • Windows begins to crash over and over again.

The System Requirements That Keep you from QuickBooks Error 6123

  • The operating system you use should be Windows XP, Windows Vista, Windows 7, Windows 8, and more recent variants.

  • Your CPU requirement must have at least a 2.0 GHz processor.

  • Your desktop system must have at least 512 MB ram to run the accounting software smoothly.

  • Your workstation needs to be connected with a speedy web connection for smooth functionality.

  • You must need Internet Explorer (IE) 6.0 or versions that are higher than that.

  • The desktop system requires a bare minimum of 4xCD-ROM drive.

Guide To Resolve QuickBooks Error Code 6123

Method 1. – Using QuickBooks File Doctor Tool.

  • QuickBooks is one of the most effective tools required to eliminate stubborn errors such as QuickBooks Errors.

  • Download QBFD tool and install it on the desktop system.

  • Once the Tool is installed, run it on your operating system.

  • The possible damages that have been done to your system, the tool will display them on your desktop screen.

  • You will be offered two ways to fix the issues shown in the diagnosed results once you finished running the tool.

  • If the error keeps you from accessing the company file, import it to the QB data recovery team.

Method 2. QB Connection Diagnostic Tool.

  • Check “my network connection” on your main computer that hosts the accounting software.

  • Install and run the QB Connection Diagnostic Tool.

Check if the issue is resolved. If the issue is still there, move to method number two.

Method 3. Fixing Damaged Files.

  • Tap Windows and then find and click “Explorer”.

  • Look for the company file, and press right-click on the .ND extension.

  • Rename the extension file with “.ndold”.

If you want to get access to multiple user mode, follow the below-mentioned;

  • Move to “File” menu.

  • After that, select “Utilities”.

  • Host multi-user access.

  • Get to “File>Switch” to Multi-user mode.

Method 4. Try Renaming The Company File or Take out A Special Character.
It is seen quite often that when the name has any special character, the limit exceeds. Therefore, a user must ensure the following;

  • When you are naming the Company File, it must not exceed the limit of 30 characters.

  • You must not put any special characters or any space while you are naming the file.

Method 5. Create a New Windows User.

  • Open Control Panel and after accessing it, click on “Create a New Account”.

  • Once you are done with that, head for the admin for user type.

  • Log out of the account the preferred existing account.

  • After that, move the company file to the desktop.

  • Now open QB and get access to the company file.

Important*The Internet Explorer

6.0 and above is the preferred browser that a user must use to operate the accounting software uninterruptedly. It is the most preferred browser that syncs well with QB software. You can try other browsers, but they will not be well-synced with it.

Important*Internet Connection

Your Internet Connection needs to be in good shape and must provide ample speed to run the system and the QB software. Not to mention, most of the errors occur due to the low speed of the internet connection.


These are the methods through which you can rectify error 6123 from your accounting software. The methods mentioned in the write-up are tried and tested and provide results when implemented. However, if the problem is still here to stay, contact the QB expert, and they will help you with the solution.


My name is Bob Uni. I work at Quickbooksupportnet which is an accounting industry. It work towards resolving all type of QuickBooks issues for the QuickBooks software. I provide solutions to the errors that might be faced when using the QuickBooks software. quickbooks invalid product number

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