To fix QuickBooks Error Code H202, start by ensuring that the company file is hosted only on the server and not on any workstations, then verify that all systems are connected to the same network. Update QuickBooks Desktop to the latest version and check that required services like QuickBooksDBXX and QBCFMonitorService are running on the server. Use the QuickBooks File Doctor to diagnose and repair network or file-related issues, and confirm that firewall ports are open to allow QuickBooks communication. Also, check that the server’s IP address is correctly listed in the .ND file. If the error persists, contact QuickBooks support at +1 (302) 205-4658 for expert help resolving advanced multi-user setup issues.
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