Troubleshooting Methods to Resolve QuickBooks Error -6123, 0

Quickbooks error

Accounting has become less complex over the years. Not for businesses, at least. QuickBooks Desktop enables business enterprises to perform all accounting tasks efficiently. With regard to accounting, it is indeed a mighty-level program. However, QuickBooks still contains some errors that mar its impeccability, even though it could be considered an epitome of accounting software. An example of such an agitating error is the QuickBooks error -6123, 0. The error message states that the connection to the QuickBooks company file has been lost.

In multi-user mode, this error occurs most often. If you follow the instructions on the screen, you should be able to solve this error. It can also cause complete havoc in other cases. Someone will surely be able to guide you through it.

What is QuickBooks Error Code -6123, 0?

The QuickBooks Desktop application displays an error message when it encounters error code 6123. “Error: -1623, 0 We’re Sorry, QuickBooks cannot open the company file.” In addition, users are instructed to run QuickBooks File Doctor and update QuickBooks Database Server Manager as part of the standard troubleshooting procedure to resolve company file errors. There are times when basic troubleshooting alone isn’t enough to resolve error codes like QuickBooks Error 6123 and you will need to implement additional troubleshooting steps. Below is a description of the error as it appears in QuickBooks:

What Causes QuickBooks Error -6123, 0?

The cause of QuickBooks error -6123, 0 can be attributed to a variety of factors. In order to prevent them from happening in the future, you just need to keep them in mind. We’ll examine each one one at a time.

  • In the event that a corrupted file is present on the main computer.
  • QuickBooks software may not function properly due to firewall settings.
  • It is possible that your QuickBooks for Windows files have been damaged.
  • The data in QuickBooks has been corrupted.
  • Your computer may have multiple QuickBooks database servers.
  • There is also the possibility that a newer version of QuickBooks has launched the exact company file.
  • Your Windows operating system may also be having problems.

This ominous error has certainly been explained now. Let’s see how we can get rid of it now.

Troubleshooting Methods to Resolve QuickBooks Error -6123, 0

This error can be solved in a number of ways. The most dynamic ones have been consolidated. Until you find the right solution, you just need to follow each method one by one. Before you apply these methods, create a backup of your data. As a result, there will be a lower risk of data loss.

Step 1: Download and Run QuickBooks File Doctor to Repair File Damage

It is a very powerful tool to use QuickBooks file doctor. Almost all QuickBooks errors and problems can be solved by using it. The only thing you need to do is select the company file that has the problem. By using this amazing tool, the issue will be detected and repaired automatically.

QuickBooks file doctor can be used in two ways. There is a choice of downloading the individual tool or using it from the QuickBooks tool hub. Here’s how QuickBooks Tool Hub can help you with QuickBooks file doctor.

  • Start by opening the QuickBooks tool hub.
  • You now need to click on the company file issues tab.
  • The Run QuickBooks file doctor button can be found here.
  • Simply click on it. Select the file where you are experiencing a problem.
  • Take a deep breath and relax. A scan will be performed automatically by the file doctor to identify the problem. After that, it will automatically fix the problem.

It is possible that the error still persists. Then we have to move to the next possible solution.

Solution 2: Use QuickBooks connection diagnostic tool

You can use this tool to diagnose connection issues on your main host computer. This method can be performed by following these steps.

  • To begin with, you will need to download the QuickBooks connection diagnostic tool from Intuit’s official website.
  • Follow the instructions to install the tools.
  • This is the interface you will see when you open the tool.
  • The browse option must be selected in the test connectivity section.
  • The company files bar will have this option.
  • Choose the company file where you encountered QuickBooks error 6123.
  • The test connectivity button should be pressed.
  • If there is a connectivity issue, the tool will automatically resolve it.

Step 3: Restore the Backup using the Portable Company File

QuickBooks sometimes allows you to restore the company file only on the device where the backup file was created for security reasons. The QuickBooks error 6123 can occur if you try to restore the backup file .qbb on a new device other than the one where it was created. Instead of the regular backup file .qbb, create a portable company file .qbm. To quickly resolve the issue, follow the instructions below:

  1. Click the File tab in QuickBooks on the old device where you created the backup.
  2. Choose to create a portable company file after selecting Create Copy.
  3. Then click Next and give your company a name.
  4. Once you have selected the location for saving the company file, click Save and OK.
  5. Take the portable company file and move it to the new computer where the backup needs to be restored.
  6. You can restore a portable file by clicking the File tab in QuickBooks and selecting Restore a Portable File.
  7. You can now open the portable company file with the extension .qbm by browsing the file and clicking on it.
  8. On the Where do you want to restore the file page, carefully read the instructions.
  9. Before opening the company file, click Next and Save.


It’s possible that the actual reason for not being able to access the company file lies deep in the installation of QuickBooks Desktop. After getting rid of all traces of the current installation, a fresh copy of QuickBooks Desktop can be installed to resolve such issues. If you want to completely reinstall QuickBooks, you can use the QuickBooks Clean Install Tool.

You can contact our support team if you are still experiencing issues/difficulties resolving QuickBooks error 6123, 0. In the shortest possible time, our support team will investigate your problem and resolve it for you completely.

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