How to Fix ‘Windows Firewall Blocking QuickBooks’ Issue?

Windows Firewall is a Microsoft Windows security functionality that manages inbound and outbound network communications. QuickBooks Firewall Settings help prevent Windows Firewall from restricting crucial QuickBooks ports.

This guide outlines the QuickBooks Connection Error in detail. The following section explains the reasons, symptoms, and effective solutions for fixing the firewall-blocking QuickBooks issue.

Read on to promptly restore network connections and QuickBooks capabilities.

Understanding the QuickBooks Firewall Blocking Issue

A QuickBooks Firewall Settings blocked issue is a common error among QuickBooks users. The primary reason for this connection error is the disruption of the connection between QuickBooks and other network services.

Due to this firewall limitation, multi-user access is interrupted. In addition, background network processes and data exchange between company files get disrupted.

Furthermore, QuickBooks firewall limitations can give rise to issues like H101, H202, H303, and H505.

Reasons that Trigger Windows Firewall to Block QuickBooks Desktop

Windows Firewall can restrict QuickBooks Desktop when security norms impact network connectivity. Primary reasons for this QuickBooks Connection Error include:

• QuickBooks Desktop is blocked by third-party antivirus software.
• QuickBooks Desktop network connectivity is restricted due to the Windows Firewall.
• Specific QuickBooks ports are deactivated or blocked.
• Wrong firewall rules stop QuickBooks Desktop from using needed services.
• The essential firewall exceptions are missing in QuickBooks Desktop.

Symptoms of the Windows Firewall is Blocking QuickBooks issue

Windows Firewall can restrict network traffic required by QuickBooks Desktop for operations. 

The following symptoms signify the presence of a QuickBooks Connection Error in the system:

• Company file access issues. 

QuickBooks Desktop can exhibit connection issues when the application fails to use the network-stored company file. 

• Database Server Manager Issues

QuickBooks Desktop shows an error when Database Server Manager cannot connect to the required network.

•  Network Connection Problems

QuickBooks Desktop often fails to use the network services. This occurs when Windows Firewall restricts the needed incoming and outgoing network traffic. 

• Shared-user mode errors

QuickBooks Desktop can experience connection issues. Firewall norms can restrict the connection between the systems and the server.

• Delayed network performance

QuickBooks Desktop can experience performance delays. Network traffic may fail to connect with the needed database service or application.

Steps to Troubleshoot the QuickBooks Firewall Settings issue

Follow the steps shared below to resolve the QuickBooks Firewall Blocking issue:

Launch QuickBooks File Doctor via the Tool Hub

QuickBooks File Doctor is a known QuickBooks Support utility. It reviews and fixes common network and file issues. 

Follow these steps to download and install the Tool Hub. Once the QuickBooks Tool Hub is installed, launch the QuickBooks File Doctor.

1. Download the QuickBooks Tool Hub

Follow these steps to download the QuickBooks Tool Hub and install it before accessing the File Doctor:

1. Navigate to the Intuit website. 
2. Download the “QuickBooks Tool Hub” setup.
3. Save the QuickBooks_Tool_Hub.exe setup file on the system.
4. Open the downloaded file and complete the installation steps.
5. Agree to the license agreement and finish the installation process.
6. Install the QuickBooks File Doctor

From the QuickBooks Tool Hub, install the QuickBooks File Doctor. Access it to review the network and company file errors. 

Follow these steps to run the QuickBooks File Doctor:

1. Access the QuickBooks Tool Hub.
2. Choose the “Company File Issues” option.
3. Next, choose the “QuickBooks File Doctor” tab.
4. From the list, choose the impacted company file.
5. Choose the “Browse and Search” option when the file is not displayed.
6. Choose the “Check your file and network” option.
7. Choose the “Continue” button.
8. Type the QuickBooks admin password.
9. Click the “Next” button.
10. Allow the scan to complete.
11. Access QuickBooks Desktop and the company file once the scan is complete.
12. Check the results even when the QuickBooks File Doctor scan is incomplete.
13. Manually Set up Windows Firewall Settings to Enable QuickBooks Desktop.

Set up the Windows Firewall settings to establish port exceptions for QuickBooks Desktop. Follow these solutions to enable QuickBooks programs via Windows Firewall and prevent the QuickBooks Connection Error:

1. Create Windows Firewall Port Exceptions for QuickBooks Desktop

Generate incoming and outgoing port rules in Windows Firewall. Follow these steps to enable QuickBooks Desktop to connect across the network:

1. Access the “Windows Start” menu.
2. Look for “Windows Firewall” and access it.
3. Choose the “Advanced Settings” option.
4. Right-click the “Inbound Rules” option and choose the “New Rule” option.
5. Choose the “Port” option and click the “Next” button.
6. Choose the “TCP” option.
7. Add the ports for the QuickBooks Desktop edition:
   • QuickBooks Desktop 2018: 8019, 56728, 55378-55382 
   • QuickBooks Desktop 2017: 8019, 56727, 55373-55377 
   • QuickBooks Desktop 2019 and later: Access the dynamic port allocated to the installation. 
8. Choose the “Next” button.
9. Next, choose the “Allow the connection” issue.
10. Click the “Next” button.
11. Choose the relevant network profile and click the “Next” button.
12. Add a name for the rule “QBPorts (Year).
13.  Click the “Finish” button.
14. Perform the same steps for Outbound rules.
15. Reboot the system.
16. Access QuickBooks Desktop and check the multi-user mode.

Note: QuickBooks Desktop 2019 and its later releases access dynamic ports. Integrate the dynamic port allocated to the QuickBooks Desktop installation. Ensure o avoid using any unknown port number. 

2. Include QuickBooks Desktop Firewall Exceptions

Generate firewall exclusions for QuickBooks Desktop. Access these exceptions when port setup does not fix network connection problems.

Follow these steps to add QuickBooks Desktop Firewall exceptions:

1. Access the Windows Firewall.
2. Choose the “Advanced Settings” option.
3. Right-click the “Inbound Rules” option.
4. Choose the “New Rule” tab.
5. Choose the “Port” option.
6. Click the “Next” tab.
7. Choose the “TCP” button.
8. Add the needed QuickBooks Desktop ports for the appropriate edition.
9. Click the “Next” button.
10. Choose the “Allow the Connection” option.
11. Choose the right network profiles.
12. Add a name for the rule “QBPorts (Year).
13. Click the “Finish” button.
14. Perform the same procedure for “Outbound Rules”.
15. Reboot the system.
16. Access QuickBooks Desktop and check the connection.
17. Include Exceptions for QuickBooks Programs in Firewall

Allow QuickBooks Through Windows Firewall

QuickBooks Desktop accesses several executable files. Such files are compatible with the database, company file, and synchronization capabilities.

To allow QuickBooks via Windows Firewall, including the exceptions for the following files is important. Adding exceptions enables the required network connectivity.

Executable file	Applicable file path
DBManagerExe.exe	C:\Program Files\Intuit\QuickBooks YEAR
AutoBackupExe.exe	C:\Program Files\Intuit\QuickBooks YEAR
QuickBooksMessaging.exe	C:\Program Files\Intuit\QuickBooks YEAR
QBW32.exe	C:\Program Files\Intuit\QuickBooks YEAR
FileManagement.exe	C:\Program Files\Intuit\QuickBooks YEAR
OnlineBackup.exe	C:\Program Files\QuickBooks Online Backup
QBDBMgrN.exe	C:\Program Files\Intuit\QuickBooks YEAR
Dbmlsync.exe	C:\Program Files\Intuit\QuickBooks YEAR
IntuitSyncManager.exe	C:\Program Files\Common Files\Intuit\Sync
QBCFMonitorService.exe	C:\Program Files\Common Files\Intuit\QuickBooks
FileMovementExe.exe	C:\Program Files\Intuit\QuickBooks YEAR
QBServerUtilityMgr.exe	C:\Program Files\Common Files\Intuit\QuickBooks
QBLaunch.exe	C:\Program Files\Common Files\Intuit\QuickBooks
QBUpdate.exe	C:\Program Files\Common Files\Intuit\QuickBooks\QBUpdat

Configure Firewall Exceptions for QuickBooks Desktop

Create outgoing and incoming program rules for every needed QuickBooks executable. Follow these steps to create firewall exceptions for QuickBooks Desktop:

1. Access the Start menu.
2. Look for “Windows Firewall.”
3. Access Windows Firewall and choose the “Advanced Settings” option.
4. Right-click the “Inbound Rules” tab.
5. Choose the “New Rule” option.
6. Choose the “Program” option and click the “Next” button.
7. Choose the “Program” button.
8. Click the “Next” button.
9. Choose the “This program path” option and select the “Browse” option.
10. Choose a QuickBooks executable from the table available.
11. Choose the “Next” button.
12. Choose the “Allow the connection” option.
13. Choose the relevant network records.
14. Click the “Next” button.
15. Name the rule.
16. Choose the “Finish” button.
17. Now, perform the same procedure under “Outbound Rules.”
18. Prepare inbound and outbound rules for every needed QuickBooks executable.

3. Check the Antivirus Settings

Verify if the antivirus restricts QuickBooks network access. Allow trusted QuickBooks folders, files, or processes to prevent QuickBooks Firewall Settings issues. 

Follow the vendor guidelines for external antivirus software and set up an exclusion in Microsoft Defender antivirus:

1. Access the Start menu.
2. Look for “Windows Security.”
3. Access “Windows Security.”
4. Choose the “Virus and Threat protection” option.
5. Choose the “Manage settings” option from the “Virus & threat protection settings.”
6. Go to “Exclusions” and choose the “Add or remove exclusions”.
7. Choose the “Add an exclusion” option.
8. Choose the right exclusion type.
9. Choose the QuickBooks folder, file, or processes that need an exclusion.
10. Verify the exclusion.
11. Run QuickBooks and check the impacted functionality.

4. Set up the Windows Firewall for QuickBooks Point of Sale

QuickBooks Point of Sale needs network connectivity between the systems and the server. Windows Firewall regulates the traffic via port, application, and connection norms. 

Such services need network access for appropriate QuickBooks Point of Sale capabilities:

Program or service	Capability
Intuit Entitlement Service	Confirms product licensing and user information
Electronic Funds Transfer	Executes Intuit Merchant Service credit card entries.
Database Server Manager	Accesses the company file, saves transactions, and records updates.

Prior to the Windows Firewall configuration, address the following requirements:

• Log in to Windows via admin rights.
• Detect the QuickBooks Point of Sale executable files that need network access.
• Detects the needed QuickBooks Point of Sale network ports.
• Set up the needed Windows Firewall rules to run the QuickBooks Point of Sale.

Use Firewall & network protection in Windows Security to manage Windows Firewall. Microsoft provides options to allow apps through the firewall. You can also configure specific ports.

1. Open the Start menu.
2. Search for Windows Security.
3. Open Windows Security.
4. Select Firewall & network protection.
5. Select the active network profile.
6. Select Allow an app through the firewall.
7. Select Change settings.
8. Select Allow another app when QuickBooks Point of Sale does not appear in the list.
9. Browse to the required QuickBooks Point of Sale executable file.
10. Add the executable file to the allowed applications list.
11. Select the appropriate network profiles.
12. Select OK.
13. Test QuickBooks Point of Sale from the server and workstations.

Use a specific port rule when QuickBooks Point of Sale requires a port that an application rule does not cover. Open only the ports required by your QuickBooks Point of Sale version and network setup.

5. Temporarily Disable Windows Firewall

Use this method as a temporary troubleshooting test. Try it when Windows Firewall settings do not resolve the QuickBooks connection issue.

Windows Firewall filters network traffic. It blocks unauthorized connections.

1. Open the Start menu.
2. Search for Windows Security.
3. Open Windows Security.
4. Select Firewall & network protection.
5. Select the active network profile.
6. Locate Microsoft Defender Firewall.
7. Turn Microsoft Defender Firewall off.
8. Open QuickBooks.
9. Test the affected connection or network function.
10. Turn Microsoft Defender Firewall on after completing the test.

Disabling Windows Firewall removes network filtering for the selected profile. Microsoft recommends allowing the required application instead.

Use firewall exceptions for the permanent configuration. Keep Microsoft Defender Firewall enabled after troubleshooting.

Steps to Configure Windows Firewall for QuickBooks Point of Sale

To enable the QuickBooks POS to connect seamlessly, set up Windows Firewall to allow the necessary ports and executable files. Establish both inbound and outbound rules to prevent the QuickBooks Connection Error, using these steps:

1. Click the “Windows + R” keys to access the “Run” screen.
2. In the “Run” screen, enter “Control Panel.”
3. Click the “OK” button.
4. In the Control Panel, choose the “Windows Defender Firewall” option.
5. Choose the “Advanced Settings” option.
6. From the left pane, choose the “Inbound Rules” option.
7. From the right pane, choose the “New Rule” option.
8. For the rule type, choose “Port”.
9. Choose the “Next” button.
10. Choose the “TCP” option.
11. In the Specific local ports, add the needed TCP ports.
12. Choose the “Next” button.
13. Choose the relevant network profiles.
14. Click the “Next” button.
15.  For the firewall rule, add a descriptive name.
16. Choose the “Finish” button.
17. Perform the same process for “Outbound Rules” for the needed outbound traffic.

QuickBooks Point of Sale Firewall Ports

Set up ports depending on the QuickBooks POS edition and network settings. Access the Intuit user guides to detect the needed ports for installation.

Protocol	Port numbers
TCP incoming	8035, 8025, 46228, 46203, 443, 8040, 46216-46220, 8443, 8024, 46225, 2638
UDP outgoing	2638, 8035, 8024, 8036

QuickBooks Point of Sale Executable Files and Port Requirements

The following table includes the QuickBooks POS ports, needed operations, and executable files for firewall setup:

Port	Executable file	Required operation
443	EFTsvr.exe	Merchant service entries
8024, 8025	QBPOS.exe, Setup.exe	Web installation and license authentication
2638	DataImporter.exe, EFTSvr.exe, QBPOSDBServiceEx.exe, QBDBMgrN.exe, QBDBMgr.exe	Data migration, application initialization, database updates, license administration and database setup
8443	EFTSvr.exe	Merchant service entries
46203, 46204	EFTSvr.exe, QBPOS.exe, QBDBMgrN.exe	Database modifications and related QuickBooks Point of Sale activities

QuickBooks Point of Sale File Locations

To verify that QuickBooks POS operates correctly via Windows Firewall, include the needed executable files. Once done, set up the relevant ports for the installed POS edition.

Default File Locations (64-bit Windows)

Note: Change XX with the biggest QuickBooks Point of Sale version saved on the system.

QuickBooks POS File	Default File Location
DataImporter.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\
QBPOSShell.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\
EFTSvr.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\
QBPOS.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\
QBDBMgr.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\DatabaseServer\
QBPOSDBService.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\DatabaseServer\
QBDBMgrN.exe	C:\Program Files (x86)\Intuit\QuickBooks POS XX\DatabaseServer\

Default File Locations (32-bit Windows)

For 32-bit Windows, access the following paths:

• Program Files: C:\Program Files\Intuit\QuickBooks POS XX\ 
• Database Server: C:\Program Files\Intuit\QuickBooks POS XX\DatabaseServer\ 

Next Steps

Once all the needed executable files and ports are added to Windows Firewall, check QuickBooks POS. Confirm that it connects correctly with the network and database.

Preventive Measures to Run QuickBooks Desktop Seamlessly

To allow QuickBooks through Windows Firewall without any disruption, follow these preventive measures:

• Ensure QuickBooks is updated

Access the current QuickBooks Desktop version. Updates add additional features, security improvements, and increase efficiency.

• Review system compatibility

Ensure the system meets the hardware requirements. This helps avoid poor performance and frequent crashes.

• Install QuickBooks as an Admin

Run QuickBooks with admin rights to avoid permission-related issues.

• Set up Antivirus and Firewall settings.

Configure antivirus settings and Windows Firewall to allow QuickBooks Desktop. This helps QuickBooks use the network.

• Regularly update Windows

Ensure Windows is up-to-date. Updates can add to efficiency and compatibility.

• Access the QuickBooks Tool Hub

Access tools like QuickBooks Install Diagnostic and QuickBooks File Doctor. Such tools can resolve common issues and network problems.

Conclusion

In this guide, the steps to troubleshoot QuickBooks Firewall Settings issues have been shared. Follow the steps shared in the guide when QuickBooks is blocked by Windows Firewall.

In case the blocking issue still exists, feel free to reach out to our team of QuickBooks experts. Call our qualified tech-skilled experts at +1800-974-3985.

Frequently Asked Questions