QuickBooks Error H202: Troubleshooting Guide for Switching to Multi-User Mode

Ava Zackson
6 min readJun 13, 2024

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QuickBooks Desktop is a robust accounting software that enables multiple users to work on the same company file simultaneously in a networked environment. However, when attempting to switch to multi-user mode, users may encounter Error H202. This error typically indicates that the multi-user setup is unable to communicate with the server hosting the QuickBooks company file. This guide provides a comprehensive approach to diagnosing and resolving QuickBooks Error H202, ensuring a seamless transition to multi-user mode.

To help you fix this problem, we have some resources in this article. But if you need expert help, you can contact us anytime. We have a team of QuickBooks experts who are available 24/7 to assist you. Just call our support line at +1–888–858–6199.

Understanding QuickBooks Error H202

Error H202 occurs when QuickBooks Desktop attempts to switch to multi-user mode but cannot connect to the server hosting the company file. This issue can arise due to several reasons, including network configuration problems, firewall settings, or issues with QuickBooks services.

Common Causes of Error H202

  1. Network Connectivity Issues: Problems with the network connection between the workstation and the server.
  2. Incorrect Hosting Configuration: Misconfigured hosting settings in QuickBooks Desktop.
  3. Firewall Blocking Communication: Firewall settings blocking QuickBooks communication ports.
  4. Damaged .ND File: Corrupt or damaged Network Data (.ND) file.
  5. QuickBooks Database Server Manager Issues: Problems with the QuickBooks Database Server Manager.

Symptoms of Error H202

  • Error message displaying “Error H202” when switching to multi-user mode.
  • Inability to open the company file in multi-user mode.
  • QuickBooks running slowly in multi-user mode.
  • Frequent disconnections from the company file.

Steps to Fix QuickBooks Error H202

Step 1: Check Network Connectivity

Ensure that all workstations and the server are properly connected to the network.

  1. Ping the Server:
  • Open the Command Prompt on a workstation.
  • Type ping [server name] and press Enter.
  • Ensure you receive replies from the server indicating a stable connection.
  1. Check Network Cables:
  • Verify that all network cables are securely connected.
  • Replace any damaged cables.

Step 2: Verify Hosting Settings

Ensure that only the server is set to host multi-user mode, and all workstations are set to multi-user mode but not hosting.

  1. On the Server:
  • Open QuickBooks Desktop.
  • Go to File > Utilities.
  • Ensure Host Multi-User Access is selected.
  1. On the Workstations:
  • Open QuickBooks Desktop.
  • Go to File > Utilities.
  • Ensure Stop Hosting Multi-User Access is selected (if it’s already hosting).

Step 3: Use QuickBooks Database Server Manager

The QuickBooks Database Server Manager helps manage the company file for multi-user access.

  1. Install QuickBooks Database Server Manager:
  • Download and install the Database Server Manager from the QuickBooks website.
  1. Scan the Company File:
  • Open QuickBooks Database Server Manager.
  • Click Scan Folders.
  • Add the folder containing your company file.
  • Click Scan.

Step 4: Configure Firewall Settings

Ensure that your firewall is not blocking QuickBooks communication ports.

  1. Add Firewall Exceptions:
  • Open the Control Panel.
  • Go to System and Security > Windows Firewall > Advanced Settings.
  • Create inbound and outbound rules for the following ports:
  • QuickBooks Desktop 2021: 8019, 56726, 55378–55382
  • QuickBooks Desktop 2020: 8019, 56727, 55373–55377
  1. Allow QuickBooks Programs:

Step 5: Repair the .ND File

The .ND file helps QuickBooks access the company file in a networked environment.

  1. Locate the .ND File:
  • Navigate to the folder containing your QuickBooks company file.
  • Look for the file with the extension .ND.
  1. Rename the .ND File:
  • Right-click the .ND file and select Rename.
  • Add .old to the end of the file name (e.g., CompanyFile.qbw.nd.old).
  1. Rescan with QuickBooks Database Server Manager:
  • Open QuickBooks Database Server Manager.
  • Click Scan Folders and scan the folder containing your company file.

Step 6: Verify QuickBooks Services

Ensure that QuickBooks services are running on the server.

  1. Open Services:
  • Press Windows + R to open the Run dialog.
  • Type services.msc and press Enter.
  1. Restart QuickBooks Services:
  • Locate QuickBooksDBXX (where XX is your QuickBooks version) and QBCFMonitorService.
  • Right-click each service and select Restart.

Step 7: Use QuickBooks Tool Hub

QuickBooks Tool Hub is a comprehensive utility that can help resolve common QuickBooks errors, including Error H202.

  1. Download QuickBooks Tool Hub:
  • Download and install QuickBooks Tool Hub from the official Intuit website.
  1. Run the Network Issues Tool:
  • Open QuickBooks Tool Hub.
  • Go to the Network Issues tab.
  • Select QuickBooks Database Server Manager and follow the on-screen instructions.

Also read: How and When to Contact QuickBooks Online Support?

Frequently Asked Questions (FAQ)

Q1: What is QuickBooks Error H202?

A1: QuickBooks Error H202 occurs when QuickBooks Desktop cannot switch to multi-user mode due to issues with the connection to the server hosting the company file. This error prevents users from accessing the company file in a multi-user environment.

Q2: What causes QuickBooks Error H202?

A2: Error H202 can be caused by network connectivity issues, incorrect hosting configuration, firewall settings blocking communication, a damaged .ND file, or problems with QuickBooks Database Server Manager.

Q3: How can I check if my network is causing Error H202?

A3: To check network connectivity, you can ping the server from a workstation using the Command Prompt. Ensure all devices are properly connected to the network, and verify that there are no damaged cables or network hardware issues.

Q4: What are the correct hosting settings for QuickBooks multi-user mode?

A4: Only the server should have “Host Multi-User Access” enabled, while all workstations should have “Stop Hosting Multi-User Access” enabled. This ensures that the server manages the multi-user environment.

Q5: How do I configure my firewall to allow QuickBooks communication?

A5: Add firewall exceptions for QuickBooks communication ports (e.g., ports 8019, 56726, 55378–55382 for QuickBooks Desktop 2021). Ensure that QuickBooks and QuickBooks Database Server Manager are allowed through the firewall.

Q6: How do I repair a damaged .ND file?

A6: Locate the .ND file in the folder containing your company file, rename it by adding .old to the file name, and rescan the folder using QuickBooks Database Server Manager. This will create a new .ND file.

Q7: What is QuickBooks Database Server Manager?

A7: QuickBooks Database Server Manager is a tool that helps manage your QuickBooks company file for multi-user access. It ensures that QuickBooks can communicate with the server and other workstations in the network.

Q8: How do I restart QuickBooks services?

A8: Open the Services application on your server, locate QuickBooksDBXX (where XX is your QuickBooks version) and QBCFMonitorService, and right-click each service to select Restart.

Q9: What is QuickBooks Tool Hub?

A9: QuickBooks Tool Hub is a collection of diagnostic tools provided by Intuit to help users troubleshoot and resolve common QuickBooks errors. It includes tools for fixing company file issues, network problems, installation errors, and more.

Q10: What should I do if I still encounter Error H202 after following these steps?

A10: If you still encounter Error H202 after following these troubleshooting steps, contact QuickBooks Support for further assistance. They can provide advanced troubleshooting and technical support to resolve the issue.

contact QuickBooks Support

Conclusion

QuickBooks Error H202 can be a significant obstacle when trying to switch to multi-user mode, but with the right approach, it can be resolved effectively. By following the steps outlined in this guide, you can diagnose and fix the underlying causes of Error H202, ensuring smooth operation in a multi-user environment. Regular maintenance, proper network setup, and using tools like QuickBooks Tool Hub can help prevent such issues in the future. If you encounter persistent problems, don’t hesitate to reach out to QuickBooks Support for professional assistance.

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Ava Zackson

Hello I am Ava Jackson have 10 years experience of customer support. Contact Us +1-8888586199 to Fix QuickBooks Tool Hub Error & Website: https://qbtoolhub.info