Understanding and Resolving QuickBooks Error Code H202

QuickBooks is a powerful tool for managing small to mid-sized business finances. However, users sometimes encounter errors that can disrupt their workflow. One such issue is QuickBooks Error Code H202. This error typically arises in multi-user environments when QuickBooks is unable to connect to the company file on another computer. Understanding the causes and solutions for this error is crucial for maintaining efficient business operations. In this comprehensive guide, we will explore the intricacies of QuickBooks Error Code H202, its causes, and detailed steps to resolve it.

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What is QuickBooks Error Code H202?

QuickBooks Error Code H202 occurs when QuickBooks Desktop attempts to establish a connection to the company file but fails due to network-related issues. This error signifies that the multi-user mode is not functioning correctly because the system cannot access the server that hosts the company file.

The error message typically reads: “Error Code H202: QuickBooks is trying to access the company file but cannot contact the server on your network.”

Common Causes of QuickBooks Error Code H202

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

  1. Incorrect Hosting Configuration: The hosting configuration on the server or the workstations might be incorrect.
  2. Firewall Blocking Communication: The firewall settings may block communication between QuickBooks and the server.
  3. Damaged .ND File: The Network Descriptor (.ND) file, which allows QuickBooks to access company files in a network, might be corrupted.
  4. DNS Server Issues: Problems with the DNS server can prevent QuickBooks from connecting to the host computer.
  5. Inadequate Network Configuration: Incorrect or insufficient network settings can hinder proper communication.
  6. QuickBooks Services Not Running: Essential QuickBooks services, such as QuickBooksDBXX and QBCFMonitor, might not be running.

Solutions to Fix QuickBooks Error Code H202

To resolve QuickBooks Error Code H202, follow these comprehensive steps. Ensure you perform each step carefully to avoid further complications.

Solution 1: Verify Hosting Settings

  1. Check Hosting on Workstations:
    • Open QuickBooks on each workstation.
    • Go to File > Utilities.
    • Ensure that Host Multi-User Access is not selected. If it is, click Stop Hosting Multi-User Access.
  2. Check Hosting on Server:
    • Open QuickBooks on the server.
    • Go to File > Utilities.
    • Ensure that Host Multi-User Access is selected. windows 11 If not, click Host Multi-User Access.

Solution 2: Use QuickBooks File Doctor

  1. Download QuickBooks Tool Hub:
    • Visit the official Intuit website and download the QuickBooks Tool Hub.
    • Follow the on-screen instructions to install the tool.
  2. Run QuickBooks File Doctor:
    • Open QuickBooks Tool Hub and go to the Company File Issues tab.
    • Select Run QuickBooks File Doctor.
    • In the File Doctor window, select your company file and choose Check your file (middle option) and click Continue.
    • Enter your QuickBooks admin password and click Next.
    • Allow the tool to run and repair any issues it detects.

Solution 3: Create a New Folder for Your Company File

  1. Create a New Folder:
    • On the server, create a new folder and share it, giving it full access permissions.
  2. Copy Company File:
    • Copy the QuickBooks company file (.QBW) and paste it into the new folder.
  3. Open QuickBooks:
    • Open QuickBooks and navigate to the new folder location to open the company file.

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 Program and click Next.
    • Browse to the QuickBooks executable file (QBW32.exe) and select it.
    • Allow the connection and complete the rule setup.
    • Repeat these steps for Outbound Rules.
  3. Add Firewall Ports:
    • Ensure the following ports are open for QuickBooks:
      • QuickBooks Desktop 2021: 8019, 56728, 55378-55382
      • QuickBooks Desktop 2020: 8019, 56727, 55373-55377
      • QuickBooks Desktop 2019: 8019, 56726, 55368-55372

Solution 5: Rename the .ND and .TLG Files

  1. Locate the Files:
    • Navigate to the folder where your QuickBooks company file is stored.
  2. Rename the Files:
    • Find the files with extensions .ND and .TLG. Right-click each file and select Rename, adding .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 6: Check and Configure DNS Settings

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  1. Verify DNS Settings:
    • Press Windows + R, type CMD, and press Enter.
    • In the Command Prompt window, type ipconfig /all and press Enter.
  2. Note the IP Address:
    • Note the IP address of the server where the QuickBooks company file is stored.
  3. Edit the Windows Hosts File:
    • Go to C:\Windows\System32\Drivers\Etc and open the hosts file in Notepad.
    • Add the IP address and server name at the end of the file (e.g., ServerName).
  4. Save and Close:
    • Save the file and close Notepad.
    • Restart your computer and try opening QuickBooks again.

Solution 7: Restart QuickBooks Services

  1. Open Services:
    • Press Windows + R, type services.msc, and press Enter.
  2. Restart QuickBooks Services:
    • Locate QuickBooksDBXX (where XX represents the version year) and QBCFMonitorService.
    • Right-click each service and select Restart.

Solution 8: Verify QuickBooks Database Server Manager Installation

  1. Check Installation:
    • Go to Control Panel > Programs and Features.
    • Ensure that QuickBooks Database Server Manager is installed. If not, install it from the QuickBooks installation files.
  2. Run QuickBooks Database Server Manager:
    • Open QuickBooks Database Server Manager and scan the folder where your company file is stored.

Preventive Measures to Avoid Error Code H202

Taking preventive measures can help you avoid encountering QuickBooks Error Code H202 in the future. Here are some recommendations:

Regular Updates

  • Keep QuickBooks Updated: Ensure that you regularly update QuickBooks to the latest version to benefit from new features and bug fixes.
  • Update Windows and Other Software: Regularly update your operating system and other software to maintain compatibility with QuickBooks.

Stable Network Connection

  • Reliable Internet Service: Use a reliable internet service provider to ensure a stable connection.
  • Network Maintenance: Regularly maintain your network equipment, such as routers and modems, to avoid connectivity issues.

Proper Security Configurations

  • Configure Firewall and Antivirus: Ensure that your firewall and antivirus software are configured to allow QuickBooks operations without interference.
  • Regular Security Checks: Periodically review and adjust your security settings as needed.

User Training

  • Educate Users: Train your employees on the correct procedures for using QuickBooks and managing company files.
  • Permissions Management: Ensure that users have the appropriate permissions to access and modify QuickBooks files.


QuickBooks Error Code H202 can be a significant hindrance to your business operations, especially in a multi-user environment. However, with a thorough understanding of its causes and solutions, you can effectively troubleshoot and resolve this issue. Regular maintenance, updates, and proper configurations are key to ensuring the smooth functioning of QuickBooks. If the error persists despite following these steps, consider seeking assistance from QuickBooks support or consulting with a qualified IT professional. By staying proactive and informed, you can maintain the efficiency and reliability of your business operations with QuickBooks.

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