When a multi-user network's software is unable to connect to the company file, QuickBooks Error H202 happens. It usually means that there is a communication problem between the host and workstations, which is frequently caused by network issues, improper hosting configuration, or firewall settings.  It can be fixed by verifying QuickBooks settings and network connectivity.  Our QuickBooks Experts team can be reached at 1.855.738.2784.