# QuickBooks Error H505 Network Fix: Proven Methods to Restore Multi-User Hosting (2025 Guide)

When QuickBooks displays Error H505, it means your company file is on a server computer that needs additional configuration to allow multi-user access. This problem usually prevents users from switching to multi-user mode, causing workflow disruptions. If you're experiencing this issue, you can quickly resolve it by following this detailed guide—or by calling **1-855-226-9990 or 1-877-383-3101** for expert assistance.

**What Is QuickBooks Error H505?**

QuickBooks Error H505 typically appears when the workstation cannot connect to the company file hosted on the server. This occurs due to incorrect hosting settings, blocked network ports, or misconfigured firewall permissions. If you need fast troubleshooting, contact **1-855-226-9990 or 1-877-383-3101**.

**Major Causes of QuickBooks Error H505**

Understanding the cause makes the fix easier. Common reasons include:

* Incorrect hosting configuration
* QuickBooks services not running on the server
* Damaged .ND file
* Blocked firewall ports
* Problems with DNS settings

If you’re unsure which cause applies to you, call **1-855-226-9990 or 1-877-383-3101** for step-by-step help.

**How to Fix QuickBooks Error H505 (Step-by-Step)**

**1. Verify Hosting Settings**

On all workstations:

* Open QuickBooks
* Go to File → Utilities
* Ensure "Host Multi-User Access" is NOT selected
* Only the server computer should host the files

If hosting settings confuse you, reach QuickBooks specialists at **1-855-226-9990 or 1-877-383-3101**.

**2. Enable QuickBooks Services on the Server**

QuickBooks depends on:

* **QuickBooksDBXX**
* **QBCFMonitorService**

To enable them:

1. Press **Windows + R** → type **services.msc**
1. Locate both services
1. Set **Startup Type → Automatic**
1. Click **Start**

If the services fail to start, call **1-855-226-9990 or 1-877-383-3101**.

**3. Configure Windows Firewall**

QuickBooks needs specific ports open:

Version Port
2025 8020
2024 8019
2023 8018

| Version | Port |
| -------- | -------- |
| 2025 | 8020 |
| 2024 | 8019 |
| 2023 | 8018 |

Steps:

Open Control Panel

Go to **Advanced Firewall Settings**

Add **Inbound + Outbound Rules**

Allow the above ports

Firewall configuration can be tricky—feel free to call **1-855-226-9990 or 1-877-383-3101** for quick setup.

**4. Repair the .ND File**

The **.ND (Network Data)** file helps QuickBooks access your company file in a network.

Steps:

* Go to the company file folder
* Find **.ND file**
* Right-click → **Rename** → add **.old**
* Open QuickBooks Database Server Manager
* Scan the folder again

If the .ND file keeps regenerating incorrectly, call **1-855-226-9990 or 1-877-383-3101**.

**5. Use QuickBooks Tool Hub**

Intuit’s Tool Hub can fix hosting and network issues automatically.

* Download QuickBooks Tool Hub
* Open it → select **Network Issues**
* Run **QuickBooks Database Server Manager**

If the tool doesn't fix the error, dial **1-855-226-9990 or 1-877-383-3101** for expert help.

**6. Check DNS Configuration**

Incorrect DNS settings cause network path failure.
Make sure all systems use the same DNS server.

* Open CMD
* Type: **ipconfig /flushdns**
* Restart PC

For advanced DNS repair, call **1-855-226-9990 or 1-877-383-3101** anytime.

**Preventing QuickBooks Error H505 in the Future**

To avoid recurring issues:

* Keep your QuickBooks updated
* Maintain stable network connectivity
* Assign a static IP to your server
* Regularly restart QuickBooks services
* Configure firewall rules once properly

If you want a full network audit, QuickBooks specialists are available at **1-855-226-9990 or 1-877-383-3101**.

**Final Thoughts**

QuickBooks Error H505 is a common multi-user issue but easily fixable with proper settings, network configuration, and firewall permissions. If you need fast support without spending hours troubleshooting, you can get expert assistance anytime at **1-855-226-9990 or 1-877-383-3101**.