How to Troubleshoot Error Code 6123 in Quickbooks?

QuickBooks is Intuit’s most innovative accounting software, designed primarily for small and medium enterprises. It is used by millions of people all over the world since it makes business job management so much easier. QuickBooks, like other software systems, is prone to technical faults and glitches. In this article, we’ll go through QuickBooks Error Code 6123 in depth. Continue reading to learn why this occurs and how to quickly resolve it.

Reasons Behind Quickbooks Error 6123

A QuickBooks Error Code 6123 appears when a user tries to restore QuickBooks company files from a backup hard disc. It could also happen if you try to open a company file directly from the multi-network server same as the QuickBooks install error 1911. The following is a list of possible causes for the QB error 6123:

  • The data files or corporate files in QuickBooks are corrupted.
  • Your firewall protection has most likely blocked a port that is required for talking with the server hosting company file.
  • Your Windows operating system is most likely broken.
  • There are many versions of the QuickBooks database service running at the same time, which could result in QuickBooks Error 6123, 0.
  • The Windows File Registry is corrupted.
  • Third-party software is interfering.

Possible Solutions to Fix Quickbooks Error 6123

The following are detailed procedures for resolving QuickBooks Error Code 6123. So, let’s go through the troubleshooting instructions one by one:


  • On your Windows PC, first, download and run the QuickBooks File Doctor program.
  • Then, in your operating system, look for the QB Company File.
  • After that, choose “Check File Damage Only” from the drop-down menu.
  • Then choose “Diagnose File” from the drop-down menu.
  • Now, accurately type the “Admin Password” and select the “OK” button.
  • After that, in the newer version of Quickbooks download, choose ‘Open File’ or ‘Repair File’ in the older version.
  • Follow the on-screen instructions for the remaining stages.
  • Reboot/restart your computer system once you’ve completed all of these instructions.
  • Now try opening a Company file in QBs; you should not see the QuickBooks Error Code 6123, 0 this time. If it hasn’t appeared yet, move on to the next step in the process.


You can also get rid of the QB Error Code 6123 by renaming the.ND and.TLG files together. The following is the entire procedure you should follow:

  • To begin, go to the folder where the company file is kept and open it.
  • After that, choose your company’s link.ND file.
  • After that, right-click on the company file and select “Rename” from the menu.
  • Rename the.ND file to “.ND.OLD” and save it. Alternatively, select the.TLG file and rename it “.TLG. OLD.”
  • Finally, check if the error has been repaired by launching your QuickBooks Company File.
  • Continue to the next solution if the error 6123,0 persists.


If you still can’t start the QuickBooks Company file after using solution 2, consider relocating it to a different location. You can start or access the company file after successfully moving it from one location to another. If you’re using a host connection, copy the file first from the computer and then open it. This time, the QuickBooks Error Code 6123 may be resolved. If not, move on to the next step.


If you’re using McAfee or another antivirus program to protect your computer, turn it off for the time being. The company file is definitely disrupted by the security software, which regards them as malware or viruses. As a result, you won’t be able to open your own QuickBooks company file because they’ve been identified as a virus or several dangers. In such cases, you must temporarily disable the antivirus program before opening the corporate file. This procedure can sometimes be useful in resolving the error code 6123, 0.


  • To use this procedure, go to the “Control Panel” and remove the existing QuickBooks that are running. Also, double-check that you have your product and license information.
  • After that, either download the most recent version of QuickBooks or utilize your QuickBooks installation CD (If you have one).
  • Install QuickBooks in normal mode now.
  • After you’ve finished installing everything, fill in the appropriate fields with your Product ID and License Number in the correct manner.
  • Your QBs will undoubtedly be registered once you supply these credentials. It is also enabled and ready for usage.
  • Now access your QuickBooks company file to look for the QuickBooks Error Code 6123, 0.

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Wrapping up

We only hope that the aforementioned solutions are effective in dealing with QuickBooks Error Code 6123. If you require further information, please contact us at the helpline number, which is available 24 hours a day, seven days a week. The highly qualified and talented specialist will get in touch with you and offer you technical assistance. It is 100% certain that the mistake will be resolved with their assistance and direction.


Kate Johnson is a content writer, who has worked for various websites. She is also a college graduate who has a B.A in Journalism.

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