QuickBooks Error H202 is a multi-user setup error that occurs when a workstation cannot connect to the company file located on another computer. This error prevents data hosting and collaboration, making it a major challenge for teamwork-based accounting tasks. Common causes include incorrect hosting configuration, blocked communication by the firewall, or QuickBooks database server issues. Fixing Error H202 requires running the QuickBooks Database Server Manager, ensuring that all necessary services are active, and adjusting firewall settings to allow QuickBooks communication. Misconfigured network paths often lead to this problem. If Error H202 persists, users may face restricted company file access. For personalized troubleshooting, contact +1-866-408-0444.