QuickBooks Error 6190 is a company file access error that occurs when QuickBooks Desktop cannot access or open a company file because the company file and its associated transaction log file are out of sync. You will usually encounter this error when opening a company file stored on a network or accessed in a multi-user environment. When this QuickBooks Desktop Error code 6190 occurs, QuickBooks can prevent you from accessing the company file and working with other users connected to it.
Common error messages include:
- “QuickBooks was unable to open the company file [file name] on the hosted computer.”
- “An error occurred when trying to open the company file -6190, -816.”
- “QuickBooks cannot open the company file because a file is open in single-user mode by another user.”
- “Workstations cannot connect to the server.”
In this guide, we’ll discuss what QuickBooks Error 6190 means, when it occurs, its common causes and symptoms, and the methods to fix QuickBooks company file error 6190.
What Causes QuickBooks Error Code 6190?
QuickBooks Error 6190 occurs when QuickBooks cannot access the company file because of a file mismatch, incorrect hosting configuration, network problems, or multi-user access issues.
Here are the most common causes of QuickBooks Desktop Error 6190:
- Mismatch Between the Company File and Transaction Log File.
- Another User Accessing the File in Single-User Mode.
- Damaged Network Data or Transaction Log Files.
- Incorrect QuickBooks Hosting Configuration.
- Company File Stored in an Inappropriate Location.
- Network Connectivity or Shared-Folder Access Issues.
- Damaged or Corrupted Company File.
How to Identify QuickBooks Desktop Error 6190?
You can identify QuickBooks Error 6190 when QuickBooks displays the error code while opening a company file, often alongside file, network, or multi-user access issues.
Here are the common signs that indicate QuickBooks Error 6190:
- Error -6190, -816 Appears While Opening the Company File.
- Company File Access Is Blocked by Single-User Mode.
- Mismatch Between the .QBW and .TLG Files.
- Network or Hosting Configuration Prevents Company File Access.
- Company File Opens on the Host but Not on Network Workstations.
- QuickBooks Freezes or Stops Responding During File Loading.
- Error Appears After Moving, Restoring, or Updating the Company File.
- Users Lose Access to the Company File After a Network Change.
What to Do Before Troubleshooting QuickBooks Error Code 6190?
Before troubleshooting Error 6190 in QuickBooks Desktop, take a backup of the company file, ensure that no QuickBooks sessions remain active, and verify that you have administrative access to the system and company-file location.
Here are the essential checks to complete before troubleshooting QuickBooks Error 6190:
| Parameters | Details |
| Company File Backup | Before performing the troubleshooting steps, create a current backup of the .QBW company file. |
| Administrator Access | Log in as an administrator to Windows to get the necessary files and settings. |
| QuickBooks Status | Exit QuickBooks and end any active QuickBooks processes on the host computer and workstations. |
| User Access | Check that no user has the company file open in single-user mode. |
| File Location | Confirm that you are using the correct .QBW company file and verify its storage location before troubleshooting. |
| QuickBooks Tool Hub | Keep QuickBooks Tool Hub installed and updated for file and network diagnostics. |
What are the Methods to Fix QuickBooks Desktop Error Code 6190?
To fix QuickBooks Error 6190, identify whether a company file mismatch, single-user conflict, network problem, or hosting issue prevents QuickBooks from accessing the file.
Here are the effective methods to fix QuickBooks Error Code 6190:
Solution 1: Restart the Server and Workstations
Restarting the host computer and connected workstations can clear temporary processes and restore communication between the systems.
Follow these steps to restart the QuickBooks network environment:
- Close QuickBooks Desktop on all computers.
- Restart the computer that hosts the company file.
- Restart all connected workstations.
- Open QuickBooks Desktop on the server first.
- Open QuickBooks on each workstation.
- Try opening the company file again.
Solution 2: Run Quick Fix My Program
Quick Fix My Program terminates the background QuickBooks processes and refreshes program components that may be interfering with access to the company file.
Here are the steps to run Quick Fix My Program:
- Close QuickBooks Desktop.
- Open QuickBooks Tool Hub.
- Select Program Problems.
- Choose Quick Fix My Program.
- Wait for the tool to complete the process.
- Reopen QuickBooks and try accessing the company file.
Solution 3: Use QuickBooks File Doctor
QuickBooks File Doctor can diagnose certain company-file and network problems that prevent QuickBooks from opening or accessing a company file.
Follow these steps to run QuickBooks File Doctor:
- Open QuickBooks Tool Hub.
- Select Company File Issues.
- Choose Run QuickBooks File Doctor.
- Select the affected company file or browse to its location.
- Select the option to check both the company file and network, if available.
- You will be prompted to log in as the QuickBooks administrator.
- Start the scan and respond to the prompts.
- You can now launch QuickBooks and check if you still encounter error 6190.
Solution 4: Run QuickBooks Database Server Manager
QuickBooks Database Server Manager helps the server manage company files accessed by users over a multi-user network.
Here is how to scan the company file folder:
- Open QuickBooks Tool Hub on the server.
- Select Network Issues.
- Choose QuickBooks Database Server Manager.
- Select the folder containing the company file.
- Click Start Scan.
- Browse to the correct folder if the company file does not appear.
- Open QuickBooks on the server and workstations after the scan finishes.
- Test the company file again.
Solution 5: Check Single-User and Multi-User Mode
Error 6190 can occur when another user has opened the same company file in single-user mode while other users try to access it.
Use these steps to verify the QuickBooks access mode:
- Ask all users to close the company file.
- Open QuickBooks on the server.
- Open the company file that is having problems.
- Select File and check whether QuickBooks is currently in Single-User or Multi-User Mode.
- Use Multi-User Mode if you have to work with more than one person at a time.
- Reconnect the workstations to the company file.
- Observe that the error does not occur again.
Solution 6: Rename the .ND and .TLG Files
Issues with the Network Data (.ND) file or the transaction log (.TLG) file can cause access problems to the company file. By renaming these supporting files, QuickBooks will regenerate them as necessary.
Follow these steps to rename the supporting files:
- Close QuickBooks Desktop on every computer.
- Open the folder containing the company file.
- Locate the .ND and .TLG files that match the company file name.
- Right-click the .ND file and select Rename.
- Add .OLD to the end of the filename, such as CompanyFile.qbw.nd.OLD.
- Repeat the process for the matching .TLG file.
- Open QuickBooks Desktop again.
- Sign in to the company file and check whether Error 6190 still appears.
Note: These files should not be deleted. Renaming them allows the originals to remain in existence, while QuickBooks can create the supporting files afresh.
Solution 7: Move the Company File to the Local Server Drive
The company file should be stored on a local or server drive and not on an external, removable, or cloud-synchronized drive.
Here are the steps to test the company file from a local location:
- Close QuickBooks on all computers.
- Create a current backup of the company file.
- Restore or copy the file to a local hard drive on the server computer.
- Open the copied company file from the server.
- Verify that the file can be opened in QuickBooks without Error 6190.
- If the copied version is functioning, look into the original storage location.
Note: Do not keep the active company file on USB drives, external drives, NAS devices, or cloud-synchronization folders.
Solution 8: Recreate the Company File in a New Folder
Restoring a backup to a new folder can help determine whether the original file location or configuration contributes to the access problem.
Follow these steps to test a restored copy:
- Create a current backup of the affected company file.
- Save the backup to the server’s local hard drive.
- Restore the backup to a new directory.
- Give the restored company file a different name.
- Open the restored company file in QuickBooks.
- Ensure that the required accounting data is available.
- See if the Error 6190 still appears.
- Do not replace the original company file until you confirm that the restored copy works correctly.
Solution 9: Update QuickBooks Desktop
Updating QuickBooks Desktop can solve application-related problems and make sure that the running application is the latest maintenance release for the installed version.
Here are the steps to update QuickBooks Desktop:
- Close the company file and open QuickBooks Desktop.
- Go to Help > Update QuickBooks Desktop.
- Select the Update Now tab.
- Choose Get Updates.
- Wait for the update process to finish.
- Restart QuickBooks Desktop.
- Install the update when QuickBooks prompts you.
- Open the company file and check whether the error remains.
Solution 10: Run QuickBooks Installation Tools
If the above solutions do not fix your issue and QuickBooks itself seems to be malfunctioning, use the repair tools in QuickBooks Tool Hub.
Follow these steps to diagnose installation-related problems:
- Open QuickBooks Tool Hub.
- Select Installation Issues.
- Run the appropriate QuickBooks installation diagnostic tool.
- Allow the diagnostic process to complete.
- Restart the computer.
- Open QuickBooks Desktop again.
- Test access to the company file.
How to Prevent QuickBooks Error Code 6190?
To prevent QuickBooks Desktop Error Code 6190, maintain the correct hosting setup, store the company file in a supported location, keep QuickBooks updated, and use reliable multi-user network access.
Here are the best practices to prevent QuickBooks Desktop Error 6190:
- Ensure all servers and workstations are running the same version of QuickBooks Desktop.
- Configure hosting only on the designated server and keep it disabled on connected workstations.
- Store the active company file on the server’s local hard drive instead of external, NAS, or cloud-synchronized storage.
- Backup the company file regularly so you can restore it if the file becomes corrupted or inaccessible.
- Employ the appropriate Single-User or Multi-User Mode according to the users’ method of accessing the company file.
- Keep a constant connection between the server and workstations when accessed by multiple users.
- Run QuickBooks File Doctor when recurring company-file or network problems appear.
Conclusion
To fix the error 6190 in QuickBooks Desktop, restart the server and workstations, check Single-User and Multi-User Mode, run Quick Fix My Program and a QuickBooks File Doctor scan, and scan the company file folder with Database Server Manager. You can also rename the .ND and .TLG files, update QuickBooks Desktop, and test the company file from a supported local or server location. If the error continues, restore a reliable backup to a new folder or contact a qualified QuickBooks professional for assistance with the affected company file.
Frequently Asked Questions
Can QuickBooks Error 6190 cause data loss?
QuickBooks Error 6190 does not normally cause data loss itself, although an underlying damaged company file can create a separate risk to accounting data.
Is QuickBooks Error 6190 specific to QuickBooks Desktop?
Yes, Error 6190 is primarily associated with QuickBooks Desktop company-file access, particularly in networked or multi-user environments.
Can antivirus software cause QuickBooks Error 6190?
Yes, security software can sometimes interfere with QuickBooks communication or file access when it blocks required processes or network connections.
Does QuickBooks Error 6190 affect payroll data?
The error does not specifically target payroll data, but it can prevent access to the company file containing payroll information and other accounting records.
Can I fix QuickBooks Error 6190 without reinstalling QuickBooks?
Yes, most cases can be investigated without reinstalling QuickBooks because the issue often involves company-file access, networking, or configuration.
Can a Windows update trigger QuickBooks Error 6190?
A Windows update can sometimes affect application compatibility or permissions, but it is not a primary cause of QuickBooks Error 6190.
How long does it usually take to fix QuickBooks Error 6190?
The time required to fix QuickBooks Error 6190 depends on whether the cause is a user-access conflict, network configuration issue, file mismatch, or company file problem.
Can I open my QuickBooks company file on another computer?
Yes, you can open a QuickBooks company file on another compatible computer when QuickBooks, user permissions, network access, and hosting are configured correctly.

