How to Fix QuickBooks Error Code H505

Annoying is underestimation when describing the QuickBooks Error H505. The error display “This Company file is on another computer, and QuickBooks needs some help connecting” always leaves a trail of frustration and concern. Businesses incorporating QuickBooks systems experience multiple H series errors that require technical solutions, which can be expensive, especially with external IT experts.

QuickBooks Error Code H505, a common error on QuickBooks Desktop, occurs when the user retrieves a company file from other devices on the same network, but the hosting configuration or connection to the server is not established. This makes it challenging to configure the multi-user mode on linked computers.

How to Fix QuickBooks Error code H505

QuickBooks, QuickBooks Tool Hub, and QuickBooks Enterprise Error H505

QuickBooks software is a robust software well renowned in the accounting software industry manufactured by Intuit, offering incredible accounting services to small and medium businesses. Though not limited but open to multiple organizations globally, QuickBooks is prone to different technical glitches and errors such as QuickBooks H505 Error. The software user needs to seek quick solutions to resolve and recover data.

QuickBooks Error H505 and other arising QuickBooks Errors can easily be eliminated or managed by another innovative Intuit application called QuickBooks Tool Hub. It’s a simple application that solves vast QuickBooks errors like QuickBooks Error H202, QuickBooks Enterprise Error H505. The app requires no IT professionals as it’s designed with accessible, well-organized features.

Companies utilizing the QuickBooks software services regularly must implement the QB Tool Hub feature to curb errors. QuickBooks H505 Error may appear repeatedly due to system configurations, especially while accessing company files and other valuable data from computers. However, the user doesn’t need help from external sources as QuickBooks developers have provided the easy, comprehensive tool.

How to fix QuickBooks Error code H505

Apparent Symptoms of QuickBooks Error H505

With the presence of QuickBooks H505 Error, various signs start appearing, warning the user. The error comes with a message display, offering some troubleshooting solutions. 

QuickBooks Multi-user Mode inaccessibility

All devices start with the multi-user mode issue. The system warns that the mode is not working and needs some checking. To verify whether your software has error H505, it’s likely the multi-user mode won’t function.

QuickBooks Window Crash

Expect a system down or crash alert for your QuickBooks window. The possibility is a QuickBooks Enterprise Error H505.

Simultaneous system crash

An incoming Error will cause multiple and simultaneous crashes to your system. This prepares users to seek different solutions like QuickBooks Tool Hub.


Your device will portray weird freezing behaviors, making it hard to operate on various programs.

QuickBooks Error Code H505 message

Be sure to receive continuous error interruption on your screen. 

QuickBooks Error H505

Possible Causes of QuickBooks Error H505

The Error H505 can be triggered by different features like:

A corrupt, damaged, or incorrect.ND file

Corrupt.ND file can cause the QuickBooks H505 error to occur. This prevents the user from accessing the server or other connected devices.

Switched off QuickBooks Data Server

QuickBooks app can quickly get the QB error code H505 if the database server manager is off. The user can check the server to rectify the issue. 

Incorrect hosting configuration

It’s possible to attain a QuickBooks Enterprise Error H505 if communication within the company file server is wrong. The problem occurs when there are wrong configuration settings in the system.

Unable to retrieve the hosting computer IP address

QB error H505 will appear if the user’s computer cannot acquire the correct IP address of the host device. 

DNS settings

DNS helps connect the different websites by getting domain names with exclusive server IDs where the site is contained. Users with the wrong settings will likely attract the QuickBooks H505 error. 


Getting a solid Firewall to protect your device from malware and viruses is excellent, but it can also prevent QuickBooks software from accessing the intended servers.

Having different workstations

The QuickBooks Error Code H505 happens when the user’s computer doesn’t link with other devices in the network. However, if there are multiple host servers, it increases the chance of getting the error H505.

System down

When the server is down, it might cause errors, including the QuickBooks Error H505. 

Components required for QuickBooks are not available 

To install or download QuickBooks software, the user must have the supporting components to support the process. If some features are missing, it will lead to system failure or H series errors.

Outdated system

QuickBooks application should be updated to a recent version to help perform business tasks. An outdated version will introduce the QB H505 error regularly.


Key points to remember before implementing QuickBooks Error Code H505 resolutions.

After getting the reasons for the error occurrence, businesses can check the QB developer solutions and other solutions to solve the error. However, there are a few crucial points to remember before introducing any solution as follows:

  • The user should install and download the QuickBooks app correctly.
  • QuickBooks Desktop needs a database manager hosting.
  • Ensure the application is installed on the server to allow multi-user mode.
  • Don’t download the QuickBooks application from unauthorized pages to avoid viruses.
  • Always have a data backup to prevent data loss while solving any QB issue.
  • Use the latest QuickBooks software version for easy operation.
  • For better outcomes, use preinstall tools such as Quick Fix My Program from the QuickBooks tool hub to fix QB problems.
  • Before solving any H series error, turn off the firewall restrictions and reinstall/ turn it on after solving the issue.



How to Fix QuickBooks Error Code H505

Solution step 1: Using QuickBooks File Doctor (QuickBooks Tool Hub)

  • First, close your QuickBooks application.
  • Next, download QuickBooks Tool Hub latest version and save it on your device.
  • If you have a previous version, check from the “Home” tab 
  • Go to the downloaded file indicated as QuickBooksToolHub.exe
  • Proceed with the installation process as directed on the page.
  • The page will show terms and conditions; read and agree to continue with installation.
  • After installation, double-click the Window tab to open the QuickBooks Tool Hub.
  • Choose the “Run QuickBooks File Doctor” or search to open it manually.
  • Under the QuickBooks File Doctor, select the “company file” from the list.
  • Next, click the option “check your file and Network” and press the “Continue” button.
  • Provide your QB admin password and select the “Next” button.
  • Check whether the workstation device(s) can access the multi-user mode; if yes, the error is resolved.

Solution step 2: Running QuickBooks Database Server Manager on the server

The computer storing QuickBooks company files is considered to be the server. Any other computer connected to the server is the workstation.

  • Open the QuickBooks Tool Hub and choose the “Network issues” option.
  • Next, click the “QuickBooks Database Server Manager” option.
  • Select “start scan” in the server manager if you can trace your company file.
  • The user can also “Browse” the location of the company file and press the “start scan” button.
  • After the scanning process is done, the QB database server manager will automatically repair the Firewall permissions.
  • Wait for the process and select the “close” button.
  • Now, open QuickBooks on every connected computer that has the error H505.
  • Go to the “File” option and switch to the Multi-user mode.
  • If the process happens without any error message, the QB error code H505 is solved.

Other solutions

Method 1:-

Step 1: QuickBooks services and verification of Host computer

  • The user should first verify QuickBooks DBXX and QBCF Monitor Services are up and running.
  • If okay, click the start button and type “Window + R.”
  • Next, key in “MSC and click the enter button.
  • You will get the “QuickBooksDBXX service under the service window.
  • Suppose the user doesn’t get the QuickBooksDBXX option. 
  • Now, open the QuickBooks and enable “hosting” by verifying.
  • Again, open QuickBooksDBXX and get the status of the “startup type” and “service.”
  • Press on the “Recovery” button and save the changes.

Step 2: Turn on the Multi-User Mode

  • Go to the “QuickBooks” app and open the “file option.
  • Select the “Utilities” button and proceed to the “Host Multi-user Access” option.
  • However, if it shows “Stop Hosting Multi-User Access,” it means the system is okay. 
  • Click the “Company” option and choose the “File must be closed window” tab to continue.
  • Now, click the “Yes” button.

Method 2:

Step 1: Get the IP address and server computer name

  • Click the “Window +R buttons and open the “Run” box.
  • Type “cmd” and click “enter” to open the command prompt.
  • Again, type the “ipconfig/all” and hit the “enter” button.
  • Get the “Hostname and IP address.”
  • Use the steps in all devices that have the multi-user mode.

Step 2: Editing Window Host file 

  • Exit from the QuickBooks app and select the “start” button.
  • Next, Run “My Computer” and proceed to “C” Drive. 

Enter the following location:

  • Windows tab 
  • System 32
  • Drivers.
  • Enable the hidden files by clicking the “view” tab.
  • Choose the “hidden items” option and select the “host file.” 
  • Select the “open with” > “Notepad.”
  • Next, enter the IP address and PC Name and press the save button.

Solving Error H505 by changing Firewall settings

  • Open your Firewall settings page.
  • Click the “start” button and type the “control panel” option.
  • Now, locate the settings and allow the program.
  • Next, add QuickBooks and restart the system to allow the changes to take place. 


QuickBooks Error code H505 has multiple resolution methods based on the user’s system or preference. One can implement either of the methods on their server and workstation devices. The error doesn’t require IT knowledge, as businesses can utilize the existing workforce to resolve the issues online.


Q. When does QuickBooks Error H505 occur?

Ans.  QuickBooks Error Code H505 is a common error on QuickBooks software that occurs when the user retrieves a company file from other devices on the same network, but the hosting configuration or connection to the server is not established.

Q. What are the possible causes of QuickBooks Error H505?


  • Unable to retrieve the hosting computer IP address
  • DNS settings
  • Firewall.
  • Different workstations
  • System down
  • Components required for QuickBooks are not available 
  • Outdated system

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