QuickBooks Error 6123

How to Fix & [Solved]

Call us @ ☎ 1 800 515 3107 If you suddenly met a weird QuickBooks Error 6123 “Opening a Company File Over a Network, in Multi-User Mode

When updating a company file to a new version of QuickBooks Desktop, opening a company file over a network, in multi-user mode, or while restoring a backup, you see Error 6123, 0 or Connection to the QuickBooks company file has been lost. Multiple instances of QuickBooks Database Service are running.

This error may encounter if:

The network connection between your computer and server is lost.

Firewall settings is creating problem with QuickBooks file or QuickBooks Freezes While Try To Open It

QBW file is damaged.
Multiple QuickBooks files are running.

Now I will discuss all the solutions that I tried and what worked for me.

First I downloaded QuickBooks File doctor tool to detect damage in my Quickbooks file. It didn't detect any error.

Next I checked my network connection with the host computer and it was fine too.

Third I fixed my network data file by following below steps:

1.Right-click the Windows Start button and click Explore.
2.Open your Company file and right click the file with .nd extension.
3.Now rename it with .ndold.
Unfortunately the above solution also didn't solve my problem.

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One solution I found is:

1.Open Company file.
2.Go to File-> Switch to Single User Mode.
3.Again File >Utilities > Stop Hosting Multi-user access.
4.File >Utilities > Host Multi-user access.
5.File >Switch to Multi-User Mode.

User Querry for QuickBooks Error 6123 to Troubleshoot 

I even uninstalled and reinstalled my QuickBooks file but the error was still there, so QuickBooks Reinstalling Doesn’t Work. Frustrated, I called my friend again and told her about my situation. He suggested me to contact QuickBooks Windows 10 Support as my QuickBooks file was damaged, that is why none of the above solutions worked for me. 
Our team offers nonstop Quickbooks related services and this highly trained & certified Quickbooks tech support team helps in fixing all issues and errors perfectly in the fastest time possible.
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