When attempting to locate company files on the system, QuickBooks Error H303 implies the need for additional settings. By interfering with their work, it may irritate a user. Let's go over what it is, why it arises, and simple solutions in depth.

A Brief Review of QuickBooks Error H303

The H series of issues include the often occurring bug known as QuickBooks Error H303. They are brought on by a multi-user network misconfiguration. This error is further explained by the supporting words that go along with it: “This company file is on another computer, and QuickBooks needs some help connecting.”

The user may experience the QuickBooks H303 issue in the following scenarios: 


  • The company file is stored on a different device than the server. 
  • A missing configuration prevents access to the current file.


Signs and Symptoms of QuickBooks Error H303

The multi-user configuration of your entire network may have a number of issues, which could finally result in QuickBooks Error H303. Yet here are a few of the most frequently cited causes of the same: 

  • The main reason for error H303 in QuickBooks is improper hosting settings. 
  • The Network Data (.ND) file as well as the Transaction Log (.TLG) file, two QB component files that might become damaged or corrupt, maybe the issue. 
  • The H303 error may appear if QB is unable to obtain the IP address of the server computer. 
  • Other causes of this problem include inactive QuickBooks Database Server Manager or QBCF Services
  • The error may appear as a result of a system firewall interruption. 
  • The issue could also be caused by a malfunctioning network link between the server and the workstations.


Methods To Fix QuickBooks Desktop Error H303

The following discussion covers all potential solutions to get rid of QuickBooks Error Message H303. Take the advice of the support staff to prevent any misconfiguration or follow the instructions to fix the error:


Method 1: Installing and Utilizing the QuickBooks Tool Hub on the Server 

The QuickBooks Tools Hub assists in resolving some of the frequent issues that users may experience when utilizing the software. To download the QuickBooks Tool hub and finally use it to fix QuickBooks Error Code H303, follow the procedures listed below:


  • Install the QuickBooks Tools Hub while QuickBooks is closed. 
  • To install it, run the QuickBooksToolsHub.exe file and adhere to the on-screen directions. 
  • Double-click the QuickBooks Tools Hub desktop icon after the installation is finished. If it's not on the Desktop, try searching for it using the Windows Start button. 
  • The QuickBooks Database Server Manager must then be launched on your server. 
  • Choose Network Issues from the QuickBooks Tools Hub's menu that appears. 
  • You should select QuickBooks Database Server Manager. You must select Start Scan. 
  • Any permissions problems with the firewall are automatically fixed by QuickBooks Database Server Managers. 
  • After the scan is finished, click Close
  • Open QuickBooks on each workstation and check to see if the Error code H303 is fixed. Furthermore, choose Switch to Multi-user Mode from the File menu to resolve the problem.


Method 2: Repair QuickBooks Desktop Error H303 by Downloading and Running QuickBooks File Doctor 

QuickBooks File Doctor helps to resolve error H303 and others by addressing the actual causes in the company file and network settings. 

  • Choose Company File Issues from the QuickBooks Tools Hub
  • In QuickBooks File Doctor, click Run.


  • The company file should be chosen from the drop-down menu whenever the QuickBooks File Doctor opens. To locate the file, you have two options: browse and search. 
  • Choose Check your file (just the middle option), then click Proceed. 
  • Choose Next after entering your QuickBooks admin password