QuickBooks Desktop users may encounter QuickBooks Error H505 when opening a company file, especially when trying to access a company file stored on another computer or server. This error commonly occurs when QuickBooks cannot establish a connection with the computer hosting the company file. Incorrect hosting settings, firewall restrictions, damaged network configuration, or problems with QuickBooks Database Server Manager can prevent users from opening the file in multi-user mode.
In this guide, you will learn what causes QuickBooks Error H505, how to troubleshoot it, and which steps can help restore access to your company file.
Having trouble opening your company file due to QuickBooks Error H505? Call 1-866-513-4656 for third-party technical assistance with hosting settings, network connectivity, firewall configuration, and multi-user access issues.
QuickBooks Error H505 is a multi-user hosting error that may appear when a workstation cannot communicate with the server computer where the company file is stored. QuickBooks uses network services and hosting configuration settings to allow multiple authorized users to access a shared company file.
When the required connection cannot be established, QuickBooks may display an error message indicating that the company file is located on another computer and additional configuration is needed.
The error may occur when opening an existing company file, switching from single-user to multi-user mode, or connecting to a company file over a local network.
Understanding the potential cause can help you choose the correct troubleshooting method.
Incorrect hosting settings: Hosting may be enabled on a workstation instead of the designated server.
Firewall restrictions: Windows Firewall or security software may block network communication required by QuickBooks.
QuickBooks Database Server Manager issues: The server may not be configured correctly to support access to the company file.
Damaged network configuration: QuickBooks may be unable to identify the server or establish a connection.
Incorrect folder permissions: Users may not have sufficient permissions to access the shared company file folder.
Stopped background services: Required QuickBooks database services may not be running properly.
Outdated QuickBooks software: Different software versions or missing updates may contribute to compatibility or connectivity problems.
Follow the troubleshooting methods below in order. Before making changes to your network configuration, create a backup of your company file if possible.
Incorrect hosting settings are a common reason for multi-user connection errors. In a typical setup where one computer stores the company file, only the designated server should host the file.
Open QuickBooks Desktop on each workstation.
Select the File menu.
Open Utilities.
If you see Stop Hosting Multi-User Access, select it on the workstation to disable hosting.
If you see Host Multi-User Access, do not select it on the workstation.
Repeat these checks on the other workstations.
On the server computer, verify that the hosting configuration is appropriate for your network setup. Avoid changing hosting settings indiscriminately, particularly in managed or third-party hosting environments.
After checking the settings, close and reopen QuickBooks, then try opening the company file again.
QuickBooks Database Server Manager helps the server computer make company files available to other users. If the shared folder has not been scanned or configured properly, Error H505 may occur.
On the server computer, open the Windows Start menu.
Search for QuickBooks Database Server Manager.
Open the utility associated with your installed QuickBooks version.
Select the option to scan folders or add the folder containing your company file.
Browse to the folder where the company file is stored.
Start the scan and wait for it to finish.
Reopen QuickBooks on a workstation and try accessing the company file.
If Database Server Manager is missing, install or repair the server components using the appropriate QuickBooks installation package.
QuickBooks relies on background services to support company file access. If a required service is stopped, workstations may be unable to connect to the server.
Press Windows + R.
Type services.msc and press Enter.
Locate the QuickBooks database service associated with your installed version, such as QuickBooksDBXX.
Open its properties.
Check whether the service is running.
If necessary, start or restart the service according to your organization's IT procedures.
Check the QBCFMonitorService if it is present and applicable to your installation.
The exact service names and startup requirements can vary by QuickBooks version. Do not disable services or change their settings without understanding the effect on your network.
Once the services are running, reopen QuickBooks and test the connection.
A firewall can block the communication between QuickBooks Desktop and the server hosting the company file. Security software may also restrict QuickBooks processes or network traffic.
To troubleshoot this issue:
Open Windows Security on the server computer.
Navigate to the firewall settings.
Review the allowed apps and firewall rules for your QuickBooks installation.
Make sure the required QuickBooks programs and database services are permitted on the appropriate private network.
Confirm that the necessary ports are configured according to Intuit's instructions for your QuickBooks version.
Save any approved changes and test the company file connection.
Avoid permanently disabling your firewall or antivirus protection. If you are unsure which rules are required, consult your IT administrator or follow the official QuickBooks firewall configuration documentation.
QuickBooks may display Error H505 if a workstation cannot access the folder where the company file is stored.
On the server, locate the folder containing the company file.
Confirm that the folder is shared with the appropriate users.
Review the folder's sharing and security permissions.
Make sure authorized users have the access required by your QuickBooks configuration.
From a workstation, open File Explorer.
Navigate to the server's shared folder using its network path.
Check whether the folder and company file are accessible.
If the shared folder cannot be opened, troubleshoot the Windows network connection and permissions before changing QuickBooks settings.
Do not move the company file to an unrelated folder or grant broad access to everyone simply to bypass the error.
QuickBooks Error H505 may occur when the workstation cannot reliably communicate with the server computer.
Try the following checks:
Confirm that the server is powered on and connected to the network.
Verify that the workstation is connected to the correct local network or VPN.
Check whether other workstations can open the same company file.
Confirm that the server name and shared-folder path are correct.
If your network administrator approves, test connectivity using the server's computer name or IP address.
Investigate any recent router, firewall, DNS, or network configuration changes.
If only one workstation experiences the error, focus on that computer's network configuration and QuickBooks installation. If all workstations are affected, investigate the server and shared network environment first.
QuickBooks Tool Hub includes utilities that can help diagnose certain company file and network problems. File Doctor may be useful when file access or network-related issues are suspected.
Close QuickBooks Desktop.
Download QuickBooks Tool Hub from the official Intuit website.
Install the utility and open it.
Select Company File Issues.
Choose Run QuickBooks File Doctor, if available.
Select the affected company file and follow the on-screen instructions.
Reopen QuickBooks and check whether the error persists.
File Doctor may help with supported company file and network problems, but it cannot correct every hosting, firewall, or permission issue. Always use a reliable backup and follow the tool's instructions carefully.
An outdated QuickBooks installation may contribute to software compatibility or connectivity problems.
Open QuickBooks Desktop.
Select Help and then Update QuickBooks Desktop.
Open the Update Now tab.
Select the available updates you need.
Click Get Updates.
Close and restart QuickBooks when the update finishes.
Install any downloaded updates as prompted.
In a multi-user environment, coordinate updates across the server and workstations as appropriate for your version and deployment. If the company file needs an upgrade, make a backup first and follow the software's instructions.
If the error continues after these steps, avoid repeatedly changing firewall rules or hosting settings without identifying the underlying problem.
Check these details:
Does the error affect every workstation or only one?
Can you open the company file directly on the server?
Did the error start after a QuickBooks update or network change?
Is the company file stored on the intended server?
Are the database services running, and can workstations access the shared folder?
These checks help narrow down whether the issue is related to the company file, server configuration, network connectivity, or an individual workstation.
For further guidance, you can consult Intuit's official troubleshooting instructions for H202 and H505 errors:
If you need assistance from an independent third-party technician, verify the provider's identity and service terms before sharing access to your computer or company file.
Error H505 commonly appears when QuickBooks Desktop cannot connect to the computer hosting the company file. Incorrect hosting settings, blocked firewall traffic, database service problems, or folder permissions may be responsible.
Yes. Firewall or security software may block the network communication needed to access a company file in multi-user mode. Review the appropriate QuickBooks firewall rules instead of disabling security protection entirely.
No. In a typical local network setup, the designated server hosts the company file, while workstations access it. Hosting arrangements may differ in managed environments, so follow the configuration requirements for your deployment.
File Doctor may help diagnose certain company file and network issues. However, it may not resolve errors caused by incorrect hosting configuration, firewall restrictions, or network permissions.
Many troubleshooting methods focus on network settings and background services rather than changing company data. Nevertheless, create a verified backup before performing repairs, updates, or other significant changes.
QuickBooks Error H505 when opening a company file usually indicates a problem with the connection between a workstation and the computer hosting the company file. Checking hosting settings, scanning shared folders with Database Server Manager, verifying database services, reviewing firewall rules, and testing network access can help resolve the issue.
Work through the troubleshooting steps carefully and identify whether the problem affects one workstation or the entire network. If the error remains, use Intuit's official documentation or consult a qualified IT professional familiar with your QuickBooks environment.