When QuickBooks Desktop begins freezing, fails to switch to multi-user mode, or refuses to open a company file across the network, one silent culprit often appears behind the scenes — “qbcfmonitorservice not running on this computer.”
This message indicates that the QuickBooks Company File Monitoring Service (QBCFMonitorService.exe) has stopped, is disabled, or is being blocked. Since this service plays a critical role in multi-user hosting, QuickBooks finds it difficult to communicate with the Database Server Manager, resulting in errors, failed connections, or complete disruptions.
This detailed guide explains why the QBCFMonitorService stops running and how you can fix it through verified and updated 2025 solutions.
Why Does “qbcfmonitorservice not running on this computer” Occur?
Below are the most common triggers behind the issue:
1. QuickBooks Database Server Manager (QBDBSM) is damaged or misconfigured
This prevents the monitoring service from starting or linking to the network.
2. Windows services were stopped manually or by third-party apps
Antivirus tools often flag QBCFMonitorService as suspicious.
3. Incorrect hosting configuration
If hosting is turned on in multiple systems, the service conflicts and shuts down.
4. Damaged .ND configuration files
These files store network paths. A small corruption can stop the service instantly.
5. Insufficient admin permission
The service may fail to launch if Windows does not grant elevated access.
6. Firewall or endpoint protection blocking QuickBooks processes
This is one of the most common reasons seen in 2024–2025.
7. Multi-user dependencies missing after Windows updates
Large OS updates often reset or disable background services.
How to Fix “qbcfmonitorservice not running on this computer” (Working Methods )
Below are the most accurate solutions recommended by QuickBooks support experts.
1. Restart the QBCFMonitorService Manually
This is the most effective quick fix.
Open the Windows Run command → type services.msc → press Enter.
Find: QBCFMonitorService
Then:
- Right-click → Start
- If already running → right-click → Restart
- Set Startup Type → Automatic
If the service refuses to start, continue with the next solutions.
2. Repair QuickBooks Database Server Manager
Faults in the Database Server Manager directly stop QBCFMonitorService.
Steps:
- Open Control Panel → Programs & Features
- Choose QuickBooks Database Server Manager
- Click Uninstall/Change
- Select Repair
- Restart your PC after completion
Now check if the service is running.
3. Delete and Regenerate the .ND File
Corrupted .ND network descriptor files prevent QuickBooks from connecting.
- Go to your company file folder
- Find files ending in .ND
- Right-click → Delete
Open QuickBooks Database Server Manager → Scan your folder.
A new .ND file will be created automatically.
4. Configure Windows Firewall for QuickBooks 2025
Ensure the required ports are open:
- 8019
- 56728
- 55378–55382
Add exceptions for:
- QBDBMgrN.exe
- QBCFMonitorService.exe
- FileManagement.exe
This step alone resolves the error for many businesses.
5. Repair QuickBooks Installation Files (Tool Hub Method)
Download the QuickBooks Tool Hub (latest version) → go to Program Problems → run:
- Quick Fix My Program
- QuickBooks Install Diagnostic Tool
This repairs background processes and Windows components.
6. Ensure Only One Computer Hosts the Company File
Incorrect hosting is a top cause.
On all workstations except the server:
- Open QuickBooks
- Go to File → Utilities
- If you see Stop Hosting Multi-User Access, click it
- Only the server should show Host Multi-User Access
7. Reinstall QuickBooks Database Server Manager (Clean Install)
If the service is corrupted beyond repair:
- Uninstall QuickBooks Database Server Manager
- Remove residual folders
- Install QBDBSM again using your QuickBooks installation file
- Restart PC
This reconfigures all services from scratch.
Conclusion
The “qbcfmonitorservice not running on this computer” issue is directly tied to service interruptions, network misconfigurations, or damaged QuickBooks components. By ensuring the QBCFMonitorService is active, repairing the Database Server Manager, and correcting hosting and firewall settings, you can restore full multi-user functionality without downtime.
If the issue keeps returning, deeper problems such as damaged Windows components or corrupt company files may be involved.
Frequently Asked Questions (FAQs)
How do I fix QBCFMonitorService not running?
Restart the service from the Windows Services panel, repair the Database Server Manager, and verify hosting settings. If the service still won’t start, perform a clean reinstall of QBDBSM.
Is QBCFMonitorService required for multi-user mode?
Yes. The service is essential to maintain communication between workstations and the server. Without it, QuickBooks cannot open company files over a network.
Why does QBCFMonitorService stop automatically?
Usually due to firewall blocks, incorrect hosting configurations, or corrupt .ND files.
Can I disable QBCFMonitorService?
Only if QuickBooks is used in single-user mode. For multi-user mode, it must remain active and set to Automatic.
