The network-related QuickBooks Error Code H202 appears when QuickBooks Desktop is unable to connect to a company file in multi-user mode. This mistake may prevent people from working together and sharing data. Inadequate firewall configurations, network configuration errors, and host computer problems are common culprits. Users usually need to check their network settings, make sure they are communicating properly, use QuickBooks File Doctor, and, if necessary, get help from a professional to fix it. Quick support is available if you call our QuickBooks Experts Team at 1.855.738.2784.