QuickBooks is known for simplifying accounting, but occasional errors like QuickBooks Error 6123 can disrupt your workflow. This specific error usually occurs when you’re trying to open, update, or restore a company file. Fortunately, it’s fixable with the right steps and understanding.
QuickBooks Error 6123 is a common issue users face when opening, restoring, or upgrading a company file in QuickBooks Desktop. The error typically displays the message: “Error -6123, 0: Connection to the QuickBooks company file has been lost.” It usually occurs due to a damaged company file, interrupted network connection, misconfigured firewall settings, or when attempting to restore a backup from an external storage device like a USB or network drive.
This error can severely disrupt daily accounting tasks and hinder access to critical financial data. Causes may include corrupted .ND or .TLG files, interference from antivirus software, or issues with the QuickBooks Database Server Manager.
To resolve QuickBooks Error 6123, users can try using the QuickBooks Tool Hub, renaming the .ND and .TLG files, moving the company file to a new location, or creating a new Windows profile. If these methods don’t work, restoring a backup using the Auto Data Recovery (ADR) tool may help.
If you’re unable to fix the issue, it’s best to seek professional help. Call +1-866-500-0076 to connect with a QuickBooks expert and ensure your accounting data is safe and accessible.
Learn how to fix QuickBooks Error 6123 with expert solutions, detailed causes, and proven troubleshooting steps. Call +1-866-500-0076 for support.
What is QuickBooks Error 6123?
QuickBooks Error 6123, 0 appears with the message:
“Error -6123, 0: Connection to the QuickBooks company file has been lost.”
This error often arises while opening a company file from a network or restoring a backup. It may be linked to network settings, company file corruption, or even a damaged Windows profile.
Primary Causes of QuickBooks Error 6123
Knowing the root causes can make it easier to choose the right fix. Common triggers include:
-
Corrupted or damaged QuickBooks company (.QBW) file.
-
Firewall or security software blocking communication.
-
Improper hosting settings in multi-user mode.
-
QuickBooks Database Server Manager is not working.
-
Damaged Windows user profile.
-
Attempting to restore a backup directly from a removable device.
Learn More: QuickBooks cannot communicate with the company file
Major Symptoms of QuickBooks Error 6123
Keep an eye out for these signs:
-
Frequent freezing or crashing of QuickBooks.
-
Error message “QuickBooks Error 6123” pops up while restoring/opening the file.
-
Delayed response from your system when working on QuickBooks.
-
Inability to access the company file over the network.
How to Fix QuickBooks Error 6123? – Proven Solutions
1. Use QuickBooks Tool Hub
QuickBooks Tool Hub is your first defense against common errors.
Steps:
-
Download and install the latest version of QuickBooks Tool Hub.
-
Open the Tool Hub and go to Company File Issues.
-
Click on Run Quick Fix my File.
-
Restart QuickBooks and open your file again.
2. Rename .ND and .TLG Files
These files help QuickBooks access your company data in a networked environment.
Steps:
-
Go to the folder containing your company file.
-
Locate files with the same name as your company file but with
.NDand.TLGextensions. -
Rename them to:
CompanyFileName.qbw.nd.oldCompanyFileName.qbw.tlg.old -
Reopen QuickBooks and try accessing the file.
3. Move the File to a New Location
Sometimes, the folder path can create conflicts.
Steps:
-
Create a new folder on your Desktop.
-
Copy the company file (.QBW) into this new folder.
-
Open QuickBooks and browse to open the file from the new location.
4. Create a New Windows Profile
A corrupted user profile can block QuickBooks file access.
Steps:
-
Open Control Panel > User Accounts.
-
Add a new user account with administrative rights.
-
Log into the new account and open QuickBooks.
Read Also: QuickBooks Unrecoverable Error
5. Use Auto Data Recovery (ADR) Tool
If none of the above steps work, you can restore your file using the ADR feature:
-
Locate the QuickBooksAutoDataRecovery folder in the same location as your company file.
-
Copy the latest
.QBW.adrand.TLG.adrfiles to a new folder. -
Rename them and try restoring through QuickBooks.
Preventive Tips to Avoid QuickBooks Error 6123
To reduce the chances of facing this error in the future, follow these tips:
-
Always backup your company file regularly.
-
Avoid restoring backups directly from USB or cloud drives.
-
Keep QuickBooks updated to the latest version.
-
Don’t interrupt network connections while using multi-user mode.
Conclusion
QuickBooks Error 6123 can be frustrating, but it’s not impossible to fix. With the help of built-in tools, manual troubleshooting, and expert advice, you can get back to managing your business accounts in no time.
- Fix QuickBooks Error 6123 | Complete Guide & Solutions
- Facing QuickBooks Error 6123 while opening or restoring your company file? Learn causes, solutions, and expert tips to resolve it quickly. Call support at +1-866-500-0076.
- QuickBooks, QuickBooks Support, QuickBooks Error 6123
