How to Fix QuickBooks Error Code 6190 -816 (Unable to Open File)

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quickbooks030

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QuickBooks Error Code 6190 -816 is one of the most disruptive issues users face when trying to access a company file. This error usually appears when the company data file and its transaction log file do not match or when QuickBooks is unable to access the file in multi-user mode. The message typically reads: “QuickBooks was unable to open the company file on the hosted computer.” When this happens, business operations halt, productivity drops, and accounting workflows are interrupted.

In this comprehensive guide, we provide a complete step-by-step solution to resolve QuickBooks Error 6190 -816 quickly and safely. Follow the detailed instructions below to restore access to your file and get back to smooth financial management.





Understanding QuickBooks Error 6190 -816

This error occurs primarily when there is a mismatch between the Company File (.QBW) and the Transaction Log File (.TLG) or when another user is logged in single-user mode. Some of the most common causes include:

  • Data mismatch between .QBW and .TLG files
  • File being accessed in Single User Mode by multiple users
  • Corrupted or damaged QuickBooks company file
  • Incorrect QuickBooks hosting configuration
  • Incomplete updates or outdated QuickBooks version
  • Network configuration issues
  • Data file stored on an inaccessible server or external storage
Understanding the cause helps in selecting the correct troubleshooting approach.





Symptoms of QuickBooks Error 6190 -816

You may experience one or more of the following signs:

  • QuickBooks crashes or freezes when opening the company file
  • System slows down or becomes unresponsive
  • The error message 6190-816 repeatedly appears when accessing company data
  • Inability to switch QuickBooks to multi-user mode
  • Users being locked out of the company file
Identifying these symptoms early ensures you can take swift action.





Solution 1: Use QuickBooks Tool Hub & File Doctor

The QuickBooks Tool Hub is designed to diagnose and repair file-related errors efficiently.

Steps:

  1. Close QuickBooks completely.
  2. Download the latest QuickBooks Tool Hub from the official Intuit site.
  3. Install and open the tool.
  4. Go to Company File Issues.
  5. Select Run QuickBooks File Doctor.
  6. Browse and select your company file.
  7. Choose Check your file and then Continue.
  8. Enter your QuickBooks Admin credentials.
  9. Allow the tool to scan and repair.
Once completed, restart QuickBooks and open your file.





Solution 2: Rename .ND and .TLG Files

These configuration files may become corrupted and prevent QuickBooks from opening data files.

Steps:

  1. Open the folder containing your company file.
  2. Locate files with the same name but extensions:
    • .ND
    • .TLG
  3. Right-click each file.
  4. Select Rename.
  5. Add .old at the end of the filename (Example: companyname.qbw.nd.old).
  6. Open QuickBooks again.
QuickBooks will recreate fresh versions of these files automatically.





Solution 3: Verify That No User Is in Single-User Mode

The error frequently occurs in multi-user setups.

Steps:

  1. Ask all users to log out of QuickBooks.
  2. Restart the server where the company file is stored.
  3. Open QuickBooks in Multi-User Mode.
  4. Try opening the company file again.
If a user is unknowingly logged in, this resolves it.





Solution 4: Copy the Company File to a Local Drive

Sometimes server or network issues trigger this error.

Steps:

  1. Copy your .QBW file from the server to the desktop.
  2. Open QuickBooks and select Open or Restore Company File.
  3. Browse to the copied file and open it.
If it opens successfully, the issue is with your network or hosting settings.





Solution 5: Update QuickBooks Desktop

Running an outdated QuickBooks version often results in file access issues.

Steps:

  1. Open QuickBooks.
  2. Go to Help.
  3. Select Update QuickBooks Desktop.
  4. Click Update Now.
  5. Restart QuickBooks after installation.
  6. Reopen your company file.




Solution 6: Check Hosting Configuration

Incorrect hosting can cause QuickBooks Error 6190 -816.

Steps:

  1. Open QuickBooks on all systems.
  2. Go to File.
  3. Click Utilities.
  4. If you see Stop Hosting Multi-User Access, select it.
  5. Restart QuickBooks.
Ensure only the server computer hosts the company file.





Solution 7: Restore a Backup Company File

If your file is severely damaged, restoring a backup is the safest option.

Steps:

  1. Go to File.
  2. Choose Open or Restore Company.
  3. Select Restore a Backup Copy.
  4. Follow the on-screen instructions.
Always keep multiple backups to avoid data loss in the future.





Solution 8: Verify and Rebuild Data

This helps repair internal data corruption.

Steps:

  1. Open QuickBooks.
  2. Go to File.
  3. Select Utilities.
  4. Click Verify Data.
  5. If issues are found, go back to Utilities.
  6. Select Rebuild Data.
  7. Let the process complete and restart QuickBooks.




Preventing QuickBooks Error 6190 -816 in the Future

To avoid facing this error again, follow these best practices:

  • Always maintain updated QuickBooks software
  • Avoid forcefully closing QuickBooks
  • Ensure stable network connectivity
  • Properly configure multi-user hosting
  • Regularly back up company files
  • Avoid storing company files on external drives
  • Keep system drivers updated
  • Use authorized network servers




Final Thoughts

QuickBooks Error Code 6190 -816 can disrupt accounting operations, but with the correct troubleshooting steps, it can be resolved effectively. Whether the issue stems from corrupted files, hosting conflicts, or system errors, the solutions above provide a reliable path to recovery. Follow the steps carefully, and your QuickBooks will return to smooth functioning in no time.
 
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