QuickBooks is a widely-used accounting software that simplifies financial tasks for small and medium-sized businesses. While it’s a powerful tool, users working in multi-user mode sometimes face errors that disrupt workflow. One such common issue is QuickBooks Error H202. This article will explore what Error H202 is, its causes, how it affects users, and provide a step-by-step guide to troubleshoot and fix it. We’ll also include tips to prevent it from occurring in the future.
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What is QuickBooks Error H202?

QuickBooks Error H202 typically arises when a user tries to access a company file stored on another computer (host) in multi-user mode. The error indicates that QuickBooks cannot establish a connection to the server hosting the company file. This issue prevents users from working in the multi-user environment, leading to workflow disruptions.
When this error occurs, you might see an error message like:
“This company file is on another computer, and QuickBooks needs some help connecting.”
Common Causes of QuickBooks Error H202
Several factors can trigger Error H202. Understanding these causes is key to resolving and preventing the error. Here are the most common reasons:
- Network Connectivity Issues:
- The workstation cannot connect to the computer (host) where the company file is stored.
- Blocked Communication:
- QuickBooks processes are blocked by firewall settings or third-party security software.
- Incorrect DNS Settings:
- Configured DNS settings may prevent QuickBooks from finding the host computer.
- QuickBooks Database Server Manager Problems:
- The Database Server Manager isn’t functioning correctly or has stopped running.
- File Settings:
- The company file (.QBW or .TLG) has incorrect hosting settings.
- Damaged QuickBooks Components:
- Corrupt QuickBooks files or installation issues can also lead to H202 errors.
- Host Services Issues:
- Essential QuickBooks services like QBDBMgrN or QBCFMonitor aren’t running on the server.
How Error H202 Affects Users
QuickBooks Error H202 directly impacts businesses relying on multi-user functionality. Here’s how it can disrupt your operations:
- Users are unable to access the company file from their workstations.
- Collaboration in real-time is halted, delaying accounting updates.
- Workflow is interrupted, potentially increasing downtime.
- Errors cause frustration and loss of productivity, especially during time-sensitive tasks like payroll or tax filings.
Step-by-Step Solutions to Fix QuickBooks Error H202
Below is a guide to troubleshoot and resolve Error H202. Begin with basic fixes, then advance to more detailed solutions if necessary.
Step 1: Run the QuickBooks File Doctor Tool

QuickBooks File Doctor is an automated tool designed to resolve network and company file issues.
- Download and install the QuickBooks Tool Hub from Intuit’s official website.
- Open the Tool Hub and select Company File Issues.
- Click Run QuickBooks File Doctor.
- Select the problematic company file from the dropdown or browse to find it.
- Follow the on-screen instructions to diagnose and repair.
Step 2: Verify Network Connectivity

Ensure the workstation can communicate with the server. Here’s how:
- Open the Command Prompt on your workstation.
- Type
ping [Server Name]
and press Enter. Replace[Server Name]
with your server’s name. - If you receive replies, the connection is intact. If not, troubleshoot your network.
Step 3: Check Hosting Settings

Improper hosting configuration can lead to H202 errors. Confirm the settings as follows:
- Open QuickBooks on the host computer.
- Click File > Utilities.
- Ensure Host Multi-User Access is selected. Do not enable hosting on the workstations.
- On all workstations, ensure the Stop Hosting Multi-User Access option is selected.
Step 4: Configure Firewall and Security Software

Firewalls may block QuickBooks from functioning correctly. Configure the settings to unblock QuickBooks ports.
- Open your firewall settings.
- Add inbound and outbound rules for QuickBooks using ports:
- QuickBooks Desktop 2023 uses port 8019 and other dynamic ports.
- Restart your system.
Step 5: Check QuickBooks Services on the Host

Ensure QuickBooks services are running on your server:
- Press Windows + R on your server and type
services.msc
. - Look for QuickBooksDBXX (XX=year) and QBCFMonitorService.
- Right-click each service and choose Start if they’re not running.
- Set the Startup Type to Automatic under properties.
Step 6: Recreate the Network Data File

The Network Data (.ND) file helps maintain the multi-user network. If corrupted, recreate it:
- Navigate to the folder containing the company file.
- Find and delete the file with the
.ND
extension. - Open QuickBooks Database Server Manager from the QuickBooks Tool Hub.
- Re-scan the folder to regenerate the
.ND
file.
Step 7: Use the QuickBooks Database Server Manager

Sometimes reconfiguring the server can resolve the issue:
- Open the Database Server Manager from the host system.
- Click Scan Folders and add the folder containing your company file.
- Reboot both the server and workstations to test.
Advanced Solution: Add Server to the Hosts File

If all else fails, you can manually edit the hosts file to establish communication.
- Navigate to
C:\Windows\System32\Drivers\etc
on the workstation. - Open the hosts file using Notepad (run Notepad as an administrator).
- Add the server’s IP address and computer name to the file. For example:
192.168.1.100 ServerName
- Save and close the file, then test QuickBooks.
Tips to Prevent QuickBooks Error H202
Preventing H202 errors involves maintaining a stable and secure network setup while ensuring QuickBooks processes run smoothly. Here are useful prevention tips:
- Regularly Update QuickBooks:
- Keep your QuickBooks Desktop and Database Server Manager up-to-date for performance improvements and bug fixes.
- Use a Reliable Network:
- Ensure your network connection is steady and has minimal downtime. Consider upgrading hardware if needed.
- Maintain Firewall Rules:
- Periodically review firewall settings to allow necessary QuickBooks communication.
- Monitor Server Health:
- Ensure the host computer/server is running efficiently without unnecessary applications causing slowdowns.
- Avoid Interruptions:
- Don’t turn off hosting on the server or close QuickBooks services unnecessarily.
By applying these preventive strategies, you can minimize the chances of encountering QuickBooks Error H202 in the future.
Final Thoughts
QuickBooks Error H202 can be frustrating, especially in a busy multi-user environment. However, with the step-by-step solutions outlined above, you can resolve the error and get your system back on track. Staying proactive by maintaining your network, updating QuickBooks, and monitoring your server will ensure smooth operations and fewer disruptions.
Remember, if these fixes don’t resolve your issue, consider consulting a QuickBooks expert or IT professional who can provide specialized assistance tailored to your setup.
FAQ
What is QuickBooks Error H202?
QuickBooks Error H202 occurs when a workstation cannot connect to the server hosting the company file in multi-user mode. This prevents users from accessing the file and working collaboratively in QuickBooks.
What causes QuickBooks Error H202?
Common causes include:
Network connectivity issues between workstations and the server.
Firewall or security software blocking QuickBooks processes.
Incorrect DNS settings.
Damaged or corrupt QuickBooks installation files.
Issues with QuickBooks Database Server Manager or host services.
How can I fix QuickBooks Error H202?
To resolve the error, follow these steps:
Run the QuickBooks File Doctor Tool via QuickBooks Tool Hub.
Check and correct your network connectivity using the Ping command.
Verify and configure hosting settings on the server and workstations.
Adjust your firewall settings to allow QuickBooks communication.
Ensure necessary QuickBooks services like QBDBMgrN and QBCFMonitorService are running.
Recreate the damaged Network Data (.ND) file.
Why does my firewall or security software block QuickBooks?
Firewalls and security software may incorrectly classify QuickBooks communication as a threat, blocking its ports or processes. Configuring your firewall rules to allow QuickBooks-specific ports can resolve this issue.
Why is my QuickBooks Database Server Manager not working?
The QuickBooks Database Server Manager may not be running due to service errors, improper installation, or outdated software. To fix it, restart the service and ensure it’s set to start automatically in the Windows Services window.