If you’re seeing the error "QBCFMonitorService not running on this computer", it usually means that QuickBooks is having trouble with its multi-user mode or QuickBooks Database Server Manager. This can prevent users from accessing company files in multi-user mode, leading to frustration and workflow disruptions.

In this guide, we’ll explain why this error occurs and how to fix it step by step.

What Causes the QBCFMonitorService Error?

The QBCFMonitorService (QuickBooks Company File Monitor Service) is responsible for enabling multi-user access in QuickBooks Desktop. If it stops running, users may not be able to access shared company files.

Common Causes:

1. QuickBooks Database Server Manager is not running
2. Firewall or antivirus blocking QuickBooks services
3. Damaged or missing QuickBooks installation files
4. Incorrect Windows user permissions
5. Corrupt QBCFMonitorService.exe file

Read More:- QuickBooks Running Slow

How to Fix QBCFMonitorService Not Running Issue

Solution 1: Restart QuickBooks Database Server Manager

1. Press Windows + R and type: services.msc, then press Enter.
2. Scroll down and find "QuickBooksDBXX" (where XX is your QuickBooks version, e.g., QuickBooksDB31 for QuickBooks 2021).
3. Right-click it and select Restart.
4. Do the same for QBCFMonitorService.
5. Open QuickBooks and check if the issue is resolved.

Solution 2: Run QuickBooks Database Server Manager

1. Open QuickBooks Tool Hub (Download if you don’t have it).
2. Click on Network Issues.
3. Select QuickBooks Database Server Manager.
4. Click Start Scan (if your company file is listed) or Browse to locate it.
5. Wait for the scan to complete, then restart your computer.

Solution 3: Add QuickBooks as an Exception in Firewall & Antivirus

1. Open Control Panel > Windows Defender Firewall.
2. Click Allow an app or feature through Windows Defender Firewall.
3. Look for QuickBooksDBXX and QBCFMonitorService.
4. If not listed, click Change Settings > Allow another app, then browse to:
   • C:\Program Files\Intuit\QuickBooks\DBManagerExe.exe
   • C:\Program Files\Intuit\QuickBooks\QBCFMonitorService.exe
5. Save changes and restart QuickBooks.

Solution 4: Run QuickBooks in Multi-User Mode

If the issue occurs in multi-user mode, try this:

1. Open QuickBooks.
2. Go to File > Switch to Multi-User Mode.
3. If the error appears, restart QBCFMonitorService using Solution 1.

Solution 5: Reinstall QuickBooks Database Server Manager

If nothing works, reinstalling QuickBooks Database Server Manager might help.

1. Uninstall QuickBooks Database Server Manager:
   • Go to Control Panel > Programs > Uninstall a program.
   • Find QuickBooks Database Server Manager and uninstall it.
2. Download & Reinstall from the Intuit website.
3. Restart your computer and run QuickBooks Database Server Manager again.

Read More:- QuickBooks Error PS101

Final Thoughts

The "QBCFMonitorService not running" error usually relates to QuickBooks Database Server Manager being stopped or blocked. Restarting the service, configuring your firewall, and running QuickBooks in multi-user mode should fix the problem in most cases.

If the issue persists, consider contacting QuickBooks Support for further troubleshooting.