QuickBooks is one of the most reliable accounting software solutions for businesses of all sizes. However, when operating in multi-user mode, users occasionally encounter QuickBooks Error H202. This error occurs when QuickBooks Desktop fails to connect to the company file located on another computer (the server). Understanding what causes Error H202 and how to fix it can help you get back to managing your finances without disruption. What Is QuickBooks Error H202?Error H202 appears when a user tries to open a QuickBooks company file stored on another computer, but QuickBooks cannot establish a connection to the server. The message typically reads: “Error Code H202: This company file is on another computer, and QuickBooks needs some help connecting.” This issue is common in multi-user setups, where one system acts as the host, and other workstations access the shared company file. Causes of QuickBooks Error H202Several technical reasons can trigger this issue, including: Incorrect Hosting Configuration – When hosting settings are misconfigured on workstations. Blocked QuickBooks Services – The QuickBooks Database Server Manager or QB services are not running properly. Network Connectivity Problems – Firewall or DNS settings are preventing communication between the server and workstations. Damaged or Corrupted .ND File – The Network Data (.ND) file that helps QuickBooks connect to the company file is damaged. Incorrect IP Address or Server Name – QuickBooks can’t locate the server hosting the company file. Symptoms of QuickBooks Error H202Here’s how you can identify Error H202: You can’t access the company file stored on the server. QuickBooks displays the H202 error message when switching to multi-user mode. Performance slows down when using QuickBooks in a networked environment. The hosting computer doesn’t appear in the QuickBooks Database Server Manager. QuickBooks runs smoothly in single-user mode but fails in multi-user mode. Proven Fixes for QuickBooks Error H202Follow these steps to resolve the issue: Run QuickBooks File Doctor Tool Download and run the QuickBooks Tool Hub, then select Network Issues → QuickBooks File Doctor. It automatically scans and repairs network problems. Verify Hosting Settings On each workstation: Go to File > Utilities. Ensure only the server computer has Host Multi-User Access enabled. Configure Firewall and Network Settings Allow QuickBooks programs (QBDBMgrN.exe, QBW32.exe) through your firewall. You may also need to open specific TCP ports used by QuickBooks. Delete and Recreate the .ND File Locate the company file folder. Delete the .ND file. Reopen QuickBooks, which will automatically recreate a new one. Restart QuickBooks Database Server Manager On the server computer, open Services.msc, find QuickBooksDBXX, and restart it. Final ThoughtsQuickBooks Error H202 can disrupt your workflow, but with the right troubleshooting steps, it’s easy to fix. By verifying hosting settings, configuring network permissions, and using the QuickBooks File Doctor, you can quickly restore multi-user connectivity. For recurring issues, consider consulting a QuickBooks expert or your IT administrator to ensure stable server communication.