The QBCFMonitorService Not Running on This Computer error in QuickBooks can be a major roadblock, especially if you're using multi-user mode. This service is essential for ensuring seamless communication between QuickBooks and the company file over a network. When it stops running, users may experience connectivity issues, file access problems, or errors while switching to multi-user mode.

In this guide, we will explain why QBCFMonitorService stops running and provide step-by-step solutions to fix the issue.

What Is QBCFMonitorService?

QBCFMonitorService (QuickBooks Company File Monitoring Service) is a background service that enables multi-user access in QuickBooks. It works alongside QuickBooks Database Server Manager (QBDBSM) to allow multiple users to access the same company file simultaneously.

If this service fails, QuickBooks cannot communicate over the network, leading to errors and workflow interruptions.

Why Is QBCFMonitorService Not Running?

Several factors can cause QBCFMonitorService to stop running, including:

• QBCFMonitorService is disabled or stopped manually
• QuickBooks Database Server Manager is not functioning correctly
• Windows Firewall or third-party security software is blocking QuickBooks services
• QuickBooks installation files are corrupt or missing
• Multiple instances of QuickBooks running in the background
• User lacks administrator privileges
• Outdated or incompatible QuickBooks version

How to Fix 'QBCFMonitorService Not Running' Error

Follow these solutions step by step to restore QBCFMonitorService functionality.

Step 1: Restart QBCFMonitorService

1. Press Windows + R, type services.msc, and hit Enter.
2. Locate QBCFMonitorService from the list of services.
3. Right-click it and select Restart.
4. If the service is stopped, click Start and set the Startup Type to Automatic.
5. Click Apply, then OK to save the changes.

Step 2: Restart QuickBooks Database Server Manager

1. Open QuickBooks Database Server Manager from the Start menu.
2. Click Scan Folders and check if the company file location is listed.
3. If the folder is missing, click Add Folder, select the QuickBooks company file directory, and click Scan.
4. Restart the computer and check if the issue is resolved.

Step 3: Check If QuickBooks Services Are Running

1. Press Windows + R, type services.msc, and press Enter.
2. Find and check the status of the following services:
   • QuickBooksDBXX (XX represents the QuickBooks version, e.g., QuickBooksDB30 for QuickBooks 2020)
   • QBCFMonitorService
3. If any of these services are stopped, right-click and select Start.
4. Set both services to Automatic and click Apply OK.

Step 4: Allow QuickBooks Through Windows Firewall

1. Open Control Panel and go to Windows Defender Firewall.
2. Click Allow an app or feature through Windows Defender Firewall.
3. Ensure that the following applications are allowed on both Private and Public networks:
   • QuickBooks Desktop
   • QuickBooks Database Server Manager
   • QBCFMonitorService
4. If they are missing, click Add an App and manually add them.
5. Click OK, then restart your computer.

Step 5: Use QuickBooks File Doctor Tool

1. Download and install QuickBooks Tool Hub from the official Intuit website.
2. Open QuickBooks Tool Hub and go to the Company File Issues tab.
3. Click Run QuickBooks File Doctor and select your company file.
4. Follow the on-screen instructions to diagnose and repair the issue.

Step 6: Reinstall QuickBooks Database Server Manager

1. Open Control Panel and go to Programs and Features.
2. Find QuickBooks Database Server Manager, select it, and click Uninstall.
3. Download the latest version of QuickBooks Database Server Manager from Intuit's website.
4. Install it and restart your computer.

Step 7: Check for Multiple QuickBooks Processes Running

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Click on the Processes tab and check if multiple instances of QuickBooks (QBW32.exe) are running.
3. Right-click on any extra instances and select End Task.
4. Restart QuickBooks and check if the problem persists.

Step 8: Run QuickBooks with Administrator Privileges

1. Right-click the QuickBooks Desktop icon.
2. Select Run as Administrator.
3. Enter the administrator credentials if prompted.
4. Check if the issue is resolved.

Step 9: Update QuickBooks and Windows

1. Open QuickBooks Desktop and go to Help Update QuickBooks Desktop.
2. Click Update Now and install all available updates.
3. Restart QuickBooks after the update.
4. To update Windows, go to Settings Update Security Windows Update and install any pending updates.

Step 10: Run QuickBooks in Single-User Mode First

1. Open QuickBooks Desktop.
2. Navigate to File Switch to Single-User Mode.
3. Once in Single-User Mode, switch back to Multi-User Mode.
4. Check if QuickBooks now runs without errors.

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Conclusion

The 'QBCFMonitorService Not Running' error can disrupt QuickBooks' ability to function in multi-user mode, but the solutions above should help restore service. If none of these methods work, consider reinstalling QuickBooks completely or contacting QuickBooks Support for professional assistance.