How to fix QuickBooks Error 6189 and 816 Fix in 2025

QuickBooks is the go-to accounting software for millions of small and medium-sized businesses, but like all tech tools, it's not immune to errors. One such troubling issue is QuickBooks Error Code 6190, which can stop your workflow dead in its tracks.

Resolve QuickBooks Error 6190 quickly with expert solutions. Call +1-866-409-5111 now for instant help from certified QuickBooks specialists.

What is QuickBooks Error 6190?

QuickBooks Error 6190 typically appears when you try to open your company file, but QuickBooks can’t access it due to a mismatch between the company file and the transaction log file (.tlg). The full message reads:

• QuickBooks was unable to open the company file on the hosted computer."

It usually occurs in multi-user mode, indicating a file access conflict or a corruption issue.

Main Causes of QuickBooks Error 6190

Understanding the cause is half the solution. Here are the top reasons behind QuickBooks Error 6190:

• Mismatch between the company file (.QBW) and the transaction log file (.TLG)

• Another user is logged in single-user mode

• Data corruption in the company file

• Damaged network data (.ND) file

• Incomplete or failed QuickBooks update

• Multi-user setup issues on the host system

How to Fix QuickBooks Error 6190 – Step-by-Step

Before you start troubleshooting, make sure you have:

• A backup of your company file
• Admin-level access to QuickBooks
• Internet connection (for downloading tools)

1. Use the QuickBooks Tool Hub

QuickBooks Tool Hub is an all-in-one utility that can fix a variety of errors.

Steps:

1. Download the latest version of QuickBooks Tool Hub from the official Intuit website.

2. Install and open it.

3. Navigate to Company File Issues tab.

4. Click Run Quick Fix my File.

5. After completion, reopen your company file.

2. Rename.ND and.TLG Files

These configuration files can sometimes become corrupted.

Steps:

1. Open the folder where your company file is stored.

2. Find files with the same name as your company file but with .ND and .TLG extensions.

3. Right-click and rename both files. Add.OLD at the end. Example:companyfile.qbw.nd → companyfile.qbw.nd.old

4. Reopen QuickBooks and try accessing the file.

3. Use QuickBooks File Doctor Tool

The File Doctor Tool can fix file and network-related issues.

Steps:

1. Open QuickBooks Tool Hub again.

2. Click on Company File Issues.

3. Select Run QuickBooks File Doctor.

4. Choose your company file from the dropdown and start the scan.

4. Verify Single-User Mode Access

Sometimes, multiple users trying to access the file in single-user mode can cause this error.

Solution:

• Ensure no other users are logged in.

• Switch to multi-user mode if needed.

5. Move File to Local Drive

If you're using a network drive, move the file to a local disk to test.

Steps:

1. Copy the company file to your Desktop.

2. Open it using QuickBooks.

3. If it works, the problem is likely with your network or hosting setup.

Pro Tips to Avoid QuickBooks Error 6190

• Regularly back up your data

• Always update QuickBooks to the latest version

• Use multi-user hosting correctly

• Don’t interrupt QuickBooks updates

• Run regular system and file health checks

Conclusion

QuickBooks Error 6190 can be a frustrating roadblock in your accounting workflow. Thankfully, with the right tools like QuickBooks Tool Hub, File Doctor, and a little technical know-how, most users can fix it on their own.

But if you're not confident or the error persists, don't hesitate to reach out to the QuickBooks support helpline at +1-866-409-5111 for immediate expert assistance.