Steve Smith
Steve Smith
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Get Rid of QuickBooks Error H101: Simple Solutions Explained

QuickBooks is a robust accounting software that simplifies financial management for small and medium-sized businesses. However, like any software, it’s not immune to errors. One common issue users encounter is QuickBooks Error H101. This error typically arises when trying to switch QuickBooks to multi-user mode, indicating that the company file located on another computer cannot be accessed.

In this comprehensive guide, we will explore:

  • Common Causes of QuickBooks Error H101
  • Troubleshooting Methods to Resolve QuickBooks Error H101

By the end of this article, you'll have a thorough understanding of this error and how to fix it, ensuring your QuickBooks operates smoothly.

Common Causes of QuickBooks Error H101

Understanding the root causes of QuickBooks Error H101 is crucial for effective troubleshooting. Here are some common reasons why this error might occur:

  1. Incorrect Hosting Configuration: QuickBooks may not be set up properly to host multi-user mode.
  2. Firewall Issues: The firewall may be blocking communication between QuickBooks and the server.
  3. DNS Server Issues: Incorrect DNS settings can disrupt the connection.
  4. Damaged .ND Files: Network Data (.ND) files might be corrupted, causing connectivity issues.
  5. QuickBooks Services Not Running: QuickBooks Database Server Manager or other necessary services may not be running.

Understanding these causes helps in applying the right solutions, saving time and effort.

Troubleshooting Methods to Resolve QuickBooks Error H101

Now, let’s dive into the various troubleshooting methods to resolve QuickBooks Error H101. Follow these steps carefully to ensure a successful resolution.

Method 1: Verify Hosting Settings

Incorrect hosting settings are a common cause of Error H101. Here’s how to verify and correct them:

  1. Open QuickBooks on all computers.
  2. Go to the File menu and select Utilities.
  3. If you see Host Multi-User Access on any computer, do not select it. It means that the computer is not hosting the company file.
  4. Ensure that Stop Hosting Multi-User Access is selected on the server computer (the computer hosting the company file).

Method 2: Check QuickBooks Services

Ensure that QuickBooks services are running on your server:

  1. Press Windows + R to open the Run dialog box.
  2. Type services.msc and press Enter.
  3. Look for QuickBooksDBXX (XX represents the version year) and QBCFMonitorService in the list.
  4. Right-click on each service and select Start if they are not running. If they are running, select Restart.

Method 3: Create a New Folder for Your Company File

Creating a new folder for your company file can sometimes resolve connectivity issues:

  1. On your server, create a new folder.
  2. Share the folder and set Windows access permissions to share company files.
  3. Copy the QuickBooks company file (.qbw) to the new folder.
  4. Open your company file from the new location.

Method 4: Configure Firewall Settings

Your firewall might be blocking QuickBooks from accessing the server. Here’s how to configure your firewall settings:

  1. Open the Control Panel and go to System and Security.
  2. Select Windows Firewall and then Advanced Settings.
  3. Right-click on Inbound Rules and select New Rule.
  4. Choose Port and click Next.
  5. Select TCP and enter the following ports:
  • QuickBooks Desktop 2020: 8019, 56728, 55378-55382
  • QuickBooks Desktop 2019: 8019, 56727, 55373-55377
  • QuickBooks Desktop 2018: 8019, 56726, 55368-55372
  1. Click Next and select Allow the Connection.
  2. Complete the rule setup and repeat these steps for Outbound Rules.

Method 5: Edit the Host File

Editing the host file can resolve DNS-related issues:

  1. Open Notepad as an administrator.
  2. Go to File > Open and navigate to C:\Windows\System32\Drivers\Etc.
  3. Select All Files from the file type dropdown and open the hosts file.

Add the IP address and computer name of the server at the end of the file:

  1. Save the changes and close Notepad.

Method 6: Use QuickBooks File Doctor

QuickBooks File Doctor is a handy tool provided by Intuit to fix network issues:

  1. Download and install the QuickBooks Tool Hub from the official Intuit website.
  2. Open the Tool Hub and select Company File Issues.
  3. Click on Run QuickBooks File Doctor.
  4. Choose your company file from the list and click Check your file.
  5. Follow the on-screen instructions to complete the repair process.

Method 7: Verify Hosting on the Server Computer

Ensure that the server computer is set to host the company file:

  1. Open QuickBooks Database Server Manager on the server computer.
  2. Click on Start Scan if you haven't already scanned your folders.
  3. Ensure that the folders containing the company files are being scanned.

Method 8: Reboot All Computers

Sometimes, a simple reboot can resolve many issues. Restart all computers, including the server, to refresh the network connection.

Method 9: Check for QuickBooks Updates

Updating QuickBooks to the latest version can resolve many errors:

  1. Open QuickBooks and go to the Help menu.
  2. Select Update QuickBooks Desktop.
  3. Click on Update Now and then Get Updates.
  4. Restart QuickBooks after the update completes.

Method 10: Verify User Permissions

Ensure that all users have the necessary permissions to access the company file:

  1. Open the folder containing the company file.
  2. Right-click on the folder and select Properties.
  3. Go to the Security tab and ensure that Everyone has full control.

Accounting & Bookkeeping Services For Your Business can also help manage and prevent such errors by maintaining your financial records accurately and efficient


Resolving QuickBooks Error H101 requires a systematic approach, starting from verifying hosting settings to checking firewall configurations. By following these troubleshooting methods, you can effectively resolve the error and ensure smooth operation of QuickBooks in multi-user mode.

Remember, if you’re still facing issues after trying these steps, it might be best to contact QuickBooks support for further assistance. QuickBooks is a powerful tool, and ensuring it functions correctly is vital for your business's financial management.

Read more - QuickBooks Error - QuickBooks Error Codes List And Its Easy Solution To Fix Guide

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