Learn Everything About QuickBooks Error 6190 in Detail

Jan 27, 2026 at 11:35 pm by nataliamartin1990

QuickBooks Error 6190 usually occurs when a user is operating the application in Single-User Mode rather than Multi-User Mode. There could also be file corruption. Network issues, hosting, or configuration problems, too. In this blog, you will read about this error, what causes it, its symptoms, and how to fix it.

QuickBooks Error 6190 preventing access to your company file? Learn the causes and quick fixes to resolve it fast. Call +1-866-500-0076.

The Reasons Behind QuickBooks Error 6190 and 816

Here are the reasons why QuickBooks Desktop error code 6190 and 816 keeps occurring. The reasons are stated below:

  1. Your QuickBooks application is not updated.
  2. Settings of your computer system are not properly configured.
  3. The installation of the QuickBooks application was not done properly.
  4. The. tl and.nd files are corrupted or not properly named.
  5. Multi-user mode is turned on.


Methods to Follow to Fix QuickBooks Error 6190

How do I resolve QuickBooks error 6190as a QuickBooks user? Do not worry. We have got you covered. In this section, we have thoroughly covered the methods for the QuickBooks desktop error code 6190 and 816. 

 Method 1 – Run the QuickBooks Database Server Manager

The steps to run the Database Server Manager in the QuickBooks tool hub are as follows-

  • Firstly, install the QuickBooks tool hub.
  • After installing the tool hub, go to Network Issues. 
  • In the Network Issues tab, select the QuickBooks Database Server Manager. 
  • After QuickBooks Database Server Manager opens, select the Start Scan after locating the company file. In case you are unable to find the file, go to the Browse option and find the required company file. After you find the file, click on the Start Scan.
  • After the scan finishes, click on Close. 
  • Check if the problem still persists. If yes, check every system by opening the QuickBooks application, and follow the same steps to eliminate QuickBooks desktop error code 6190 and 816. 

Method 2 – Use the File Doctor in the QuickBooks Tool Hub 

Before we see the steps to use the file doctor in QuickBooks tool hub, let us see the steps to download and install the QuickBooks tool hub. The steps are as follows-

  1. Firstly, make sure that no other tabs related to the same application are open or currently active on Windows.
  2. Now, secondly, open the official website of Intuit on your web browser.
  3. Thirdly, search Tool Hub on the website. You will get a direct link.
  4. As soon as you click on the link, a file named QuickBooksToolHub.exe will download to your computer system. 
  5. Now, press the Ctrl+J button to see the browser screen with the file being downloaded on it.
  6. Now, be assured that you move the installed file, named QuickBooks Tool Hub, to the desktop of your system so that you can easily access it. 
  7. Stop the other apps that are running on your system; this is to ensure that when you begin the installation process for QuickBooks Tool Hub, it takes place effortlessly. 
  8. Now, in this step, you have to double-click the installation file to open it.
  9. In this very step, a lot of instructions will flash on your computer screen. Make sure that you comply with the requests and accept them.
  10. After you are done reading all the instructions, agree to the terms and conditions that appear on your screen.
  11. After accepting all the terms and conditions, you will see a page called Licence Agreement.
  12. Ensure that you read the Licence Agreement properly, going through every term and condition, and keep agreeing and ticking off every box. 
  13. Now, hit the install button, and the installation process of QuickBooks Tool Hub will begin.
  14. Click the Finish button after the installation of the Tool Hub.

Now, let us see the steps to run the file doctor in the QuickBooks Tool Hub.

The steps to use the File Doctor in the QuickBooks Tool Hub are as follows.

  1. Firstly, install the QuickBooks tool hub.
  2. Now, in the Tool Hub, go to the Company File Issues Tab. 
  3. In the Company File Issues Tab, select the option to Run QuickBooks File Doctor.
  4. In QuickBooks File Doctor, choose the desired company file from the drop-down menu. In case you are unable to find the file, go to the Browse option and find the required company file. 
  5. Now, go to the Check your Network option and then click on Continue. 
  6. Now, fill in your QuickBooks admin password and then click on Next. 
  7. If you are able to switch to multi-user mode without hassle, then the issue is fixed. 

Note: If the QuickBooks File Doctor does not open, you can also look for the QuickBooks Desktop File Doctor and open it manually. 

Method 3 – Update the QuickBooks Application

The steps to update QuickBooks are as follows-

Step 1: Checking if you have the latest release or not.

To check if you have used the latest release or not, follow the steps below.

  • Launch the QuickBooks application.
  • Press the keys F2 or Ctrl+1.
  • Pressing these keys will open the Product Information window.
  • Now, you can check your current version and release.

Step 2 – Do update the QB application manually.

The steps to update QuickBooks manually are as follows-

  1. Begin with the closing of your company files and the QuickBooks application.
  2. Click the Windows Start menu button.
  3. Search QuickBooks in the search bar.
  4. Now, right-click on the icon and select the option Run as administrator.
  5. In this step, you have to go to the Help menu and select the Update QuickBooks Desktop.
  6. Now, navigate to the Options tab. Select the option Mark All and then select the Save option.
  7. In here, go to the  Update Now tab and click on the Reset Update checkbox.
  8. Now, select Get Updates. 

Method 4 – Configure the settings of the computer system

Follow the steps below to check the settings of your computer. 

  1. Firstly, go to the Windows Start Menu on your server computer.
  2. Type "Run" in the search bar.
  3. Now, type "services.msc" in the Run window, then press the Enter button.
  4. Now, please find the list QuickBooksDBXX and double-click it.
  5. Select the option of Automatic for the Startup type.
  6. Ensure that the Service status is either Running or Started. If the service status is neither Running nor Started, select the Start option.
  7. Now, head to the Recovery tab.
  8. In the  Recovery tab, select the option of Restart the Service from each of these drop-down menus: First failure, Second failure, and Subsequent failures.
  9. Now, select the Apply option and then select the OK option to save the changes.

Method 5 – Repairing the QB Installatio

The steps to repair QuickBooks are as follows-

  1. In the first step, navigate to the control panel.
  2. Now you have to go to the option of Add/Remove Programs.
  3. From the Add/Remove Programs list, choose QuickBooks and further choose the Uninstall/Change option.
  4. Now, choose the option of Repair QuickBooks Installation Window.
  5. Make sure to follow the instructions that appear on your screen. Once done, restart your system and check if the error 6190 in QB has been fixed or not. 

Method 6 – Turn off the  Host Multi-User Access mode before opening any company file.

Make sure that the host multi-user access mode is only turned on on the server computer. If it is enabled on any other workstation, you should turn it off immediately. The steps to turn off the multi-user access mode are given below.

  1. Open the workstation where you see the QB error 6190.
  2. Now, go to the File option and then navigate to the Utilities option.
  3. If you see that the Stop Hosting Multi-User Access mode is turned on in that particular workstation, in the Utilities section, then turn it off.

Method 7 – Renaming of the Damaged. ND File

The (.ND) is a configuration file that is present in the same folder as the QuickBooks company file. The application uses this file to access the file that is located on the network. To rename the. ND file, follow the steps below:

  1. Firstly, go to the folder that consists of the QuickBooks company file.
  2. Secondly, please find the file and right-click it.
  3. Now, select the option Rename and add the extension.OLD at the end of the file name.

Method 8 – Check the settings of your antivirus software 

To add QuickBooks as an exception, follow the steps below.

  1. Firstly, open the Windows Start menu.
  2. Type "Windows Firewall" in the search bar and open it.
  3. Once it is opened, select the option of Advanced Settings.
  4. In Advanced Settings, right-click on  Inbound Rules and create them.
  5. Now, select the option of New Rule.
  6. In this step, select the Program and then click on Next.
  7. Now, go to This Program Path and then head to the Browse option.
  8. Here, select the executable files and then click on Next.
  9. Now, select the option of Allow the Connection and then click on Next.
  10. Make sure all profiles are marked. Now, select Next.
  11. Finally, create a rule. Give it a name like "QBFirewallException(name.exe)."

Final Words 

On a final note, this blog has given a detailed overview of what the QuickBooks Error 6190 is. 

In case your issues about QB have not been resolved yet, or you have doubts or issues about anything, feel free to contact us +1-866-500-0076 on our toll-free number and get in touch with our experts to solve your queries.

Read Also: QuickBooks Time Login: A Software to Track In and Out

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