Troubleshooting QuickBooks Error Code H202: A Comprehensive Guide

QuickBooks is an indispensable tool for many small and medium-sized businesses, simplifying financial management and accounting. However, like any software, it is not immune to errors. One of the common errors that users encounter is QuickBooks Error Code H202. This error typically occurs in a multi-user environment and can significantly disrupt workflow by preventing access to the company file. This comprehensive guide will explore the causes of QuickBooks Error H202, step-by-step solutions to resolve it, and preventive measures to avoid future occurrences.

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Understanding QuickBooks Error Code H202

QuickBooks Error Code H202 occurs when QuickBooks Desktop is trying to establish a connection to the company file but cannot communicate with the server. This error is specific to multi-user mode and is accompanied by an error message indicating that the multi-user hosting setup is incorrect.

Causes of QuickBooks Error Code H202

Several factors can contribute to the occurrence of QuickBooks Error Code H202, including:

  1. Network Issues: Problems with network connectivity or configurations can prevent QuickBooks from accessing the server hosting the company file.
  2. Incorrect Hosting Configuration: If the hosting configuration is incorrect, it can lead to communication issues between the workstation and the server.
  3. Firewall Blocking: Firewall settings may block incoming and outgoing communication required by QuickBooks to access the company file.
  4. DNS Server Issues: Incorrect or misconfigured DNS settings can cause problems in locating the server.
  5. Damaged or Incorrect .ND File: The .ND (Network Data) file associated with the company file may be damaged or incorrectly configured.
  6. QuickBooks Services Not Running: Essential QuickBooks services such as QuickBooksDBXX and QBCFMonitor may not be running.

Solutions to Fix QuickBooks Error Code H202

Resolving QuickBooks Error Code H202 involves several troubleshooting steps. Here are the detailed solutions:

Solution 1: Verify Hosting and Server Configuration

  1. Check Hosting Settings on Server:
    • Open QuickBooks on the server.
    • Go to File > Utilities > Host Multi-User Access.
    • Ensure that this option is selected on the server windows 11 and not on the workstations.
  2. Check Hosting Settings on Workstations:
    • Open QuickBooks on each workstation.
    • Go to File > Utilities.
    • Ensure that Stop Hosting Multi-User Access is selected (this means hosting is not enabled on the workstation).

Solution 2: Use QuickBooks File Doctor

QuickBooks File Doctor is a tool designed to diagnose and repair common QuickBooks issues, including network-related problems.

  1. Download QuickBooks File Doctor: Visit the official Intuit website to download the QuickBooks File Doctor tool.
  2. Install and Run the Tool: Follow the on-screen instructions to install QuickBooks File Doctor.
  3. Scan Your Company File: Select your company file and allow the tool to scan for and repair any issues related to Error H202.

Solution 3: Check Network Connectivity

  1. Ping the Server:
    • On the workstation, open the Command Prompt by pressing Windows + R, typing cmd, and pressing Enter.
    • Type ping [server name] and press Enter. Replace [server name] with the actual name of your server.
    • If you receive replies, the network connection is intact. If not, there may be network connectivity issues.
  2. Check Network Ports:
    • Ensure that the necessary network ports are open. QuickBooks requires specific ports to be open for communication.
    • Ports for QuickBooks Desktop 2021 are 8019, 56728, 55378-55382.

Solution 4: Configure Firewall Settings

  1. Open Firewall Settings:
    • Go to Control Panel > System and Security > Windows Defender Firewall.
    • Click on Advanced Settings.
  2. Create Inbound and Outbound Rules:
    • Select Inbound Rules > New Rule.
    • Choose Port and click Next.
    • Enter the required port numbers (mentioned above) and allow the connection.
    • Repeat these steps for Outbound Rules.
  3. Restart QuickBooks:
    • After configuring the firewall, restart QuickBooks on the workstation and try to access the company file.

Solution 5: Check DNS Settings

  1. Update DNS Settings:
    • Open the Command Prompt on the server and type ipconfig /flushdns and press Enter.
    • Then type ipconfig /registerdns and press Enter.
  2. Edit Hosts File:
    • On the workstation, navigate to C:\Windows\System32\Drivers\Etc.
    • Open the hosts file in Notepad and add the IP address and server name at the end of the file.
    • Save the file and try accessing the company file again.

Solution 6: Rename the .ND and .TLG Files

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  1. Locate the Files:
    • Open the folder where your QuickBooks company file is stored.
    • Locate the files with extensions .ND and .TLG.
  2. Rename the Files:
    • Right-click each file and select Rename.
    • Add .OLD at the end of each file name (e.g., companyfile.qbw.ND.OLD).
  3. Rescan the Company File:
    • Open QuickBooks Database Server Manager on the server.
    • Click Scan Folders and add the folder containing your company file.
    • Click Scan and wait for the process to complete.

Solution 7: Ensure QuickBooks Services are Running

  1. Open Services:
    • Press Windows + R, type services.msc, and press Enter.
  2. Check QuickBooks Services:
    • Locate QuickBooksDBXX (where XX represents the version year) and QBCFMonitorService.
    • Ensure both services are running. If not, right-click each service and select Start.

Solution 8: Use the QuickBooks Database Server Manager

  1. Install QuickBooks Database Server Manager:
    • If not already installed, download and install the QuickBooks Database Server Manager from the Intuit website.
  2. Scan Your Company File:
    • Open QuickBooks Database Server Manager on the server.
    • Click Scan Folders and add the folder containing your company file.
    • Click Scan and wait for the process to complete.

Preventive Measures to Avoid QuickBooks Error Code H202

Taking preventive measures can help avoid the recurrence of QuickBooks Error Code H202 in the future:

Regular Updates

  • Keep QuickBooks Updated: Ensure that QuickBooks Desktop is always updated to the latest version to benefit from the latest features and fixes.
  • Update Windows and Software: Regularly update your operating system and other software to ensure compatibility with QuickBooks.

Network Stability

  • Stable Network: Ensure a stable and reliable network connection for QuickBooks multi-user mode.
  • Network Maintenance: Perform regular network maintenance to address any connectivity issues.

Firewall and Antivirus Configuration

  • Proper Configuration: Ensure that firewalls and antivirus software are configured to allow QuickBooks operations without interference.
  • Regular Checks: Periodically review and adjust firewall and antivirus settings as needed.

User Education

  • Training: Educate users on proper QuickBooks usage and the importance of closing QuickBooks correctly to prevent data corruption.
  • Permissions: Ensure that users have the appropriate permissions to access and modify QuickBooks files.


QuickBooks Error Code H202 can significantly disrupt your business operations, but with the right knowledge and tools, it can be effectively resolved. By understanding the causes, implementing the recommended solutions, and adopting preventive measures, you can minimize the impact of this error and ensure the smooth operation of QuickBooks in your organization. If the error persists despite following these steps, consider seeking assistance from QuickBooks support or consulting with a qualified IT professional. Stay proactive, stay informed, and keep your financial operations running smoothly with QuickBooks.

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