QuickBooks Error -6190, -816 Explained: Causes and Fixes for Company File Access Problems

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QuickBooks Error Code -6190, -816 typically occurs when QuickBooks Desktop is unable to open a company file. This error often arises in a multi-user environment when another user is logged into the company file in single-user mode. It can also result from a mismatch between the transaction log file (.TLG) and the company file (.QBW), or from network issues.

Common Causes of Error -6190, -816

Single-User Mode Conflict: Another user is logged into the company file in single-user mode.
Transaction Log Mismatch: The transaction log file (.TLG) doesn't match the company file (.QBW)
Network Issues: Problems with the multi-user network setup.
File Corruption: Corrupted company file or network data files.

Solutions to Resolve Error -6190, -816

1. Ensure QuickBooks is Updated

Keeping QuickBooks Desktop updated ensures compatibility and fixes known issues.

Open QuickBooks Desktop.
Go to Help > Update QuickBooks Desktop.
Click on Update Now, then select Get Updates.
Restart QuickBooks after the update completes.

2. Use QuickBooks Tool Hub

QuickBooks Tool Hub is a collection of tools to fix common issues.

Download the latest version of
Install and open the Tool Hub.
Select Program Problems and then Quick Fix my Program.
After the tool runs, open QuickBooks and the company file.

3. Rename .ND and .TLG Files

Renaming these files allows QuickBooks to recreate them, potentially resolving the issue.

Navigate to the folder containing your company file.
Locate files with the same name as your company file but with extensions .ND and .TLG.
Right-click each file and select Rename
Add .OLD at the end of each file name (e.g., company_file.qbw.nd.OLD).
Open QuickBooks and try accessing the company file.

4. Restart All Computers

Sometimes, a simple restart can resolve network-related issues.

Restart the server hosting the company file.
Restart all workstations connected to the network.
Open QuickBooks on the server and then on each workstation.

5. Run QuickBooks Database Server Manager

This tool helps manage your QuickBooks Database Server.

Open QuickBooks Tool Hub.
Select Network Issues and then QuickBooks Database Server Manager.
Scan the folder containing your company file.
After the scan, open QuickBooks and try accessing the company file.

6. Verify Hosting Settings

Ensure that only the server computer is set to host multi-user access.

Open QuickBooks on each workstation.
Go to File > Utilities.
If you see Host Multi-User Access, do not select it.
If you see Stop Hosting Multi-User Access, select it.

7. Move Company File to Local Drive

If your company file is stored on an external drive or cloud service, move it to a local drive.

Copy the company file to a local drive on the server.
Open QuickBooks and access the company file from the new location.

8. Restore a Backup

If the company file is corrupted, restoring a recent backup may resolve the issue.

Open QuickBooks.
Go to File > Open or Restore Company > Restore a backup copy.
Follow the prompts to restore the backup.

Need Further Assistance?

If you've tried the above solutions and still encounter Error -6190, -816, our QuickBooks support team is here to help. Contact us at 877-200-7013 for personalized assistance.

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