The alert “Database Server Manager is Not Running on This Computer” appears when QuickBooks Desktop attempts to access a company file in multi-user mode, but cannot detect the background database service on the host machine. This error means the underlying Windows service responsible for managing database queries and record locks is stopped, disabled, corrupted, or blocked by system permissions. Without this service, client workstations cannot open or share the company file.
Fast-Fix: Start the Database Server Manager Service
To fix this error, open Windows Services (
services.msc) on the host computer or server. Locate the service matching your QuickBooks version (such as QuickBooksDB36 for 2026 or QuickBooksDB35 for 2025). Double-click the service, set the Startup type to Automatic, and click Start. Next, start the QBCFMonitorService, open QuickBooks Database Server Manager, and run a folder scan on your company file directory.
Quick Status & Triage Snapshot
- Data Risk Tier: Low (the issue affects network connectivity and Windows service availability; internal company records remain intact).
- Multi-User Impact: Critical (all workstations are blocked from opening the company file in multi-user mode).
- Common Trigger: Windows updates resetting service startup types, third-party system cleanup utilities terminating background tasks, or permission changes on the host.
- Estimated Fix Time: 5 to 15 minutes.
Technical Anatomy: How QuickBooks Detects the Database Engine
When QuickBooks Desktop opens a company file hosted on a network share, it does not access the raw database file directly. Instead, it reads the network descriptor (.ND) file in the host folder to find the server’s IP address and active listening port.
Once the workstation locates the host, it sends a handshake request to QBCFMonitorService (QuickBooks Company File Monitoring Service). This service redirects the connection to the active database instance managed by QBDBMgrN.exe (running under the service name QuickBooksDBXX).
If QBDBMgrN.exe is not active in memory:
- The workstation cannot establish a database session.
- The software assumes the database manager is either uninstalled or switched off.
- QuickBooks generates the prompt stating that the Database Server Manager is not running on the computer.
To inspect how hosting roles should be configured across all machines, see the QuickBooks Desktop Multi-User Mode & Hosting Errors: Complete Configuration & Repair Guide.
Diagnostic Flowchart: Resolving the Inactive Database Manager
- Is the error appearing on the host server or on a workstation?
- Workstation: Check whether the workstation mistakenly has hosting enabled. Ensure only the server hosts the file.
- Host Server: Proceed to Step 2.
- Does the QuickBooksDBXX service show as “Running” in Windows Services?
- No: Start the service. If it starts successfully, rescan the folder in QBDBSM.
- Yes (or fails to start): Proceed to Step 3.
- Does the service fail to start with Error 1067, Error 1053, or an immediate shutdown?
- Yes: The service account permissions (
QBDataServiceUserXX) are damaged, or system files are corrupt. Repair permissions and service configurations.
- Yes: The service account permissions (
Step-by-Step Repair Guide
Step 1: Start and Configure Windows Services
On the computer or server where the company file is physically stored:
- Press Windows Key + R, type
services.msc, and press Enter. - Scroll down to locate the database service corresponding to your installed year of QuickBooks Desktop:
- QuickBooks 2026:
QuickBooksDB36 - QuickBooks 2025:
QuickBooksDB35 - QuickBooks 2024:
QuickBooksDB34
- QuickBooks 2026:
- Right-click the service and select Properties.
- In the General tab, set the Startup type to Automatic.
- If the Service status is stopped, click Start.
- Switch to the Recovery tab and configure automatic recovery:
- First failure: Restart the Service
- Second failure: Restart the Service
- Subsequent failures: Restart the Service
- Click Apply and OK.
- In the same Services list, find QBCFMonitorService, verify its startup type is set to Automatic, and ensure its status is Running.
If the service starts and immediately terminates, follow the targeted steps in Service Fix: Troubleshooting “QuickBooks Database Server Manager Stopped”.
Step 2: Grant Permissions to the Windows Service Account
When QuickBooks installs the database engine, it creates a local Windows user account (for example, QBDataServiceUser36). If this user loses permissions to access the folder holding your company file, the service cannot run properly.
- Open File Explorer and browse to the folder where your company files (
.qbw) are stored. - Right-click the folder and select Properties.
- Select the Security tab, then click Edit.
- Check if your specific service account (e.g.,
QBDataServiceUser36) is present in the list. - If it is missing, click Add, type the exact user name, click Check Names, and select OK.
- Highlight the service user and check the box for Full Control under the “Allow” column.
- Click Apply, then OK.
Step 3: Rescan the Folder in QuickBooks Database Server Manager
Refreshing the database manager registers your company files and generates updated network descriptor files:
- Click the Windows Start button, type
QuickBooks Database Server Manager, and open the utility. - Go to the Scan Folders tab.
- Click Add Folder and select the directory containing your company files.
- Click Start Scan.
- Wait for the scan to finish. When complete, confirm that all company files are displayed in the lower window with a status indicating multi-user hosting is enabled.
If your installation files are incomplete or the utility does not open, consult the QBDBSM Guide: How to Install and Configure Database Server Manager.
What If the Service Still Refuses to Run?
If the service stops right after starting, or if the Database Server Manager still claims it is not running, the underlying component files may be damaged.
- Restart Database Processes Manually: Background executable handles can hang in memory and block the service from restarting cleanly. Use the commands outlined in Manual Reset: How to Restart QuickBooks Database Services (dbmgr.exe) to clear these processes.
- Perform a Clean Reset of Database Components: If Windows registry keys or executable dependencies are broken, reinstalling the standalone server tool resolves the failure. Follow the instructions in Master Reset: How to Reinstall and Reset QuickBooks Database Server Manager.
Closing the Books
The “Database Server Manager is Not Running on This Computer” error simply indicates that the operating system has disconnected the database engine from your accounting directory. Verifying that the QuickBooksDBXX and QBCFMonitorService services are set to run automatically, ensuring proper folder access for the service user, and rescanning your company folder restores reliable multi-user hosting.