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How to Fix QuickBooks Error H101

QuickBooks is a powerful tool for managing finances, but like any software, it can sometimes run into errors. One common issue users encounter is QuickBooks Error H101. This error can be frustrating, especially when you need to access your QuickBooks data promptly. But don’t worry! In this article, we’ll delve into What is QuickBooks Error H101 Message, General Causes of QuickBooks Error H101, and Troubleshooting Solution To Fix QuickBooks Error H101.

QuickBooks Error H101

What is QuickBooks Error H101?

QuickBooks Error H101 is part of the H-series errors that generally occur when QuickBooks is trying to access company files located on another computer. This error indicates the system cannot access the company file in multi-user mode. When this happens, a message will pop up saying:

“Error H101: This company file is on another computer, and QuickBooks needs some help connecting.”

General Causes of QuickBooks Error H101

Understanding the root causes of QuickBooks Error H101 can help prevent it in the future. Here are some common reasons why this error might occur:

  1. Incorrect Hosting Configuration: The hosting settings may not be configured correctly, preventing QuickBooks from connecting to the server.
  2. Firewall Blocking Communication: Firewalls or security software might be blocking communication between QuickBooks and the server.
  3. Damaged.ND File: The .ND (Network Data) file, which is necessary for QuickBooks to access a company file in a network, might be damaged.
  4. Issues with QuickBooks Services: QuickBooks services like QuickBooksDBXX or QBCFMonitor might not be running on the server computer.
  5. IP Address Issues: The server computer’s IP address might be incorrect or not updated.

Troubleshooting Solutions to Fix QuickBooks Error H101

Now that we know the causes, let’s move on to the solutions. Here’s a step-by-step guide to troubleshoot and fix QuickBooks Error H101.

1. Verify Hosting Settings

The first step is to ensure that your hosting settings are configured correctly.

  1. On the Host Computer:

    • Open QuickBooks and go to the File menu.
    • Select Utilities.
    • If you see Host Multi-User Access on the list, it means that the host computer is not set up to host. Select this option to enable hosting.
    • If you see Stop Hosting Multi-User Access, it means hosting is already enabled. Do not change anything.
  2. On Workstations:

    • Open QuickBooks and go to the File menu.
    • Select Utilities.
    • If you see Stop Hosting Multi-User Access, click on it to disable hosting. Workstations should not have hosting enabled.

2. Configure Firewall Settings

Your firewall might be blocking QuickBooks from connecting to the server. To fix this:

  1. Create Firewall Exceptions:

    • Open the Control Panel and go to System and Security.
    • Click on Windows Firewall and select Advanced Settings.
    • Right-click on Inbound Rules and select New Rule.
    • Choose Port and click Next.
    • Select TCP and enter the following ports:
      • QuickBooks Desktop 2021: 8019, 56728, 55378-55382
      • QuickBooks Desktop 2020: 8019, 56727, 55373-55377
      • QuickBooks Desktop 2019: 8019, 56726, 55368-55372
    • Click Next and select Allow the Connection.
    • Complete the rule setup and repeat for Outbound Rules.
  2. Add QuickBooks to Exception List:

    • Go to Windows Firewall and select Allow an app or feature through Windows Firewall.
    • Click on Change settings and check QuickBooks on both Private and Public networks.

3. Check the .ND File

The .ND file is crucial for network access. If it’s damaged, you’ll need to recreate it.

  1. Locate the .ND File:

    • Go to the folder where your company file is stored.
    • Look for files with the extension .ND (e.g., CompanyName.qbw.nd).
  2. Rename the .ND File:

    • Right-click on the .ND file and select Rename.
    • Add .old to the end of the file name (e.g., CompanyName.qbw.nd.old).
  3. Rescan Using QuickBooks Database Server Manager:

    • Open QuickBooks Database Server Manager from the Start menu.
    • Click on Scan Folders and select the folder where your company file is stored.
    • Click Scan.
    • This will recreate the .ND file.

4. Restart QuickBooks Services

Ensuring that QuickBooks services are running properly can resolve the error.

  1. Open Services:

    • Press Windows + R to open the Run dialog box.
    • Type services.msc and press Enter.
  2. Restart QuickBooks Services:

    • Look for QuickBooksDBXX (where XX is your QuickBooks version) and QBCFMonitorService.
    • Right-click on each service and select Restart.
    • Ensure that the Startup type is set to Automatic.

5. Verify the IP Address and Network Configuration

An incorrect IP address can cause connectivity issues.

  1. Check IP Address:

    • On the server computer, open the Command Prompt.
    • Type ipconfig and press Enter.
    • Note down the IPv4 Address.
  2. Verify Network Configuration:

    • Ensure all computers are connected to the same network.
    • Use the ping command from the workstation to verify the server’s IP address (e.g., ping

6. Use QuickBooks File Doctor

If the above steps do not resolve the issue, using QuickBooks File Doctor can help.

  1. Download and Install QuickBooks Tool Hub:

    • Visit the official QuickBooks website and download the QuickBooks Tool Hub.
    • Install the tool hub on your computer.
  2. Run QuickBooks File Doctor:

    • Open the QuickBooks Tool Hub and select Company File Issues.
    • Click on Run QuickBooks File Doctor.
    • Select your company file and click Check your file.
    • Enter your QuickBooks admin password and click Continue.

7. Check Windows Permissions

Incorrect Windows permissions can also cause QuickBooks Error H101.

  1. Verify Folder Permissions:

    • Navigate to the folder containing your QuickBooks company file.
    • Right-click on the folder and select Properties.
    • Go to the Security tab and click on Edit.
    • Ensure Everyone has Full control.
  2. Configure User Account Control Settings:

    • Open the Control Panel and go to User Accounts.
    • Click on Change User Account Control settings.
    • Move the slider to Never notify and click OK.


Fixing QuickBooks Error H101 might seem daunting, but by following the steps outlined in this article, you can resolve the issue and get back to managing your finances seamlessly. Always ensure your QuickBooks software is updated to the latest version to minimize errors and improve functionality.

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