It is pretty much common that you might bump into some or the other error while working on this accounting software. One such error that we will be discussing in today’s piece of writing is QuickBooks error 6123, 0. This error is often seen when upgrading the company file into QuickBooks desktop. This error often appears with a warning message stating “Connection to the QuickBooks company file has been lost”. 

If you are interested in learning the process to tackle QuickBooks company error 6123, then make sure to stick around till the end. Or connect with our accounting professionals using our helpline. 

What leads to QuickBooks error 6123, 0?

The QuickBooks error code 6123,0 can be seen due to a handful of factors: 

• One of the major reasons can be if the QuickBooks data files or program files are damaged or corrupted. 
• Also, if the firewall security is blocking a port which is important to communicate with the server hosting the company file. 
• Or if the windows operating system is damaged. 
• Another reason can be if there are multiple versions of QuickBooks database service are running. 
• Moreover, block web bugs filter option is selected in McAfee antivirus. 

Methods to resolve the QuickBooks error 6123,0

You can perform the below steps, so as to get rid of the QuickBooks error 6123, 0. Let us have a look: 

Process 1: Renaming .ND along with .TLG file 

• At first, you would have to open the folder where the company file is stored. 
• Further, select the associated .ND file of the company. 
• Right click on the company file and select the rename option. 
• Rename the .nd file to .nd.old also select the .tlg file and then rename .tlg file. 
• You are first required to rename the .tlg file to .tlg.old. 
• End the process by opening QuickBooks company file. 

Process 2: Creating a new windows user 

• You need to start off with opening the control panel.
• Choose the create new user choice option in the user icon. 
• Select the admin for user type. 
• Log out from the existing. 
• And reboot the system and login using new user credentials. 
• Move the company file to the desktop. 
• End the process by opening QuickBooks and try to access to the company file. 

Performing the above stated steps might help in getting rid of the QuickBooks error 6123,0 successfully. 

However, if you have any query or if the error persists even after implementing the steps discussed in above, then in that case we would highly recommend you to make use of our dedicated customer support line i.e. 1-800-761-1787. Our 24/7 QuickBooks error support experts will fix the issue for you immediately.