[Updated] Easy Methods to Fix QuickBooks Error 6123.

QuickBooks is an innovative accounting software developed by Intuit that is used by millions of small and mid-sized businesses worldwide. It surely simplifies the work of running a firm. QuickBooks, like any other programme, suffers from mistakes and malfunctions from time to time.

According to Intuit, Quick book error code 6123,0 "Connection to the QuickBooks company file has been lost" is most commonly seen in multi-user environments. However, although some alerts can be rectified by simply following the software's instructions, others may be complex and unclear. There could be several causes for this problem.

What is the source of QuickBooks Error Code 6123, 0?

QuickBooks Error Code 6123 is caused by one of the following factors:

The primary computer's network connection is broken.

• The firewall network prevents communication with the server hosting the company file.

• QBW files have been damaged.

• Data or programme files in QuickBooks are corrupt.

• Multiple QuickBooks db service are active on same machine.

• A new version of QuickBooks is open with the same company file.

• You are restoring a backup from a removable storage device such as a flash drive.

• Window user has been harmed.

Steps to Resolve QuickBooks Error Code 6123, 0 QuickBooks Error -6123, 0 is a complicated problem. You can, however, apply the following steps to fix it.

Solution 1: Make use of the QuickBooks File Doctor feature.

QuickBooks File Doctor is a super tool for resolving some of the most prevalent causes of QuickBooks error.

• After downloading the QBFD application, install and run it.

• It will display any data or company file harm that may be causing issue 6123.

• For correcting the damages indicated by the tool's output, you will have two options

• You can recover company files from the backup.

•  if you are unable to open it send your company file to the QuickBooks data recovery Team.

Solution 2: Run the QuickBooks Connection Diagnostic Tool.

• Examine my network connection on your host (primary) PC. Run the QuickBooks Connection Diagnostic Tool after installing it.

• If the previous options do not work for you, proceed to the next.

• Also see: How to Repair QuickBooks Error 6000. (When you open a company file)

Solution 3 - Repair corrupted data files If the Error Code -6123, 0 persists after attempting solutions 1 and 2, proceed to the next step to repair the network data file.

• Click "Explore" after pressing the "Windows key (Start button)."

• Examine your Company file and right-click the ".ND" extension file.

• Change the name to ".ndold"

• Important: If you do not resolve the network data file QuickBooks Error -6123, 0, you will be unable to switch to multi-user mode.

• To switch between several user modes, perform the following:

• Navigate to the "File" menu.

• Then click "Utilities."

• Provide multi-user access.

• 6123 QuickBooks Error

• Navigate to "File>Switch to Multi-user Mode."

• Error 6123 in QuickBooks Multiuser Mode

• Important Note: If the business file cannot be opened, the 'Switch to multi-user mode' option will be unavailable. Go to File>Utilities>Host multi-user access in that instance.

Coming To a close!

We hope that this article has provided you with all of the information you need to know about QuickBooks Error Code -6123, 0. You can attempt the methods on this page to resolve the error if it appears on your screen. If you have any questions concerning QuickBooks, please call us at +1-(855)-955-1942.