QuickBooks Error H202 typically hinders businesses from accessing their company file across multiple computers. This happens because a workstation trying to access the QuickBooks company file cannot reach the hosting server. The causes can be as simple as firewall blocking access or as complex as damaged QuickBooks services on the host machine. Recommended fixes include verifying hosting settings, running File Doctor Tool, and ensuring proper DNS configurations. If ignored, the error can escalate into company-wide data access issues. To quickly restore your company file to multi-user mode and avoid data loss, reach professional advisors at +1-866-408-0444.