QuickBooks Error H505 You’re trying to get everyone into QuickBooks. It’s Tuesday morning. Your team is waiting. You open the company file on the host computer—fine. But on the second or third workstation, you see it: “QuickBooks is trying to connect to the server…” Then nothing. Or the Quickbooks Error H505: “This company file is on another computer, and QuickBooks needs to be configured to allow multi-user access.” Your stomach drops. You’ve got invoices to send, payroll to
