Hello, my name is James Warner and living in the United States. I recently tried to access my company file in multi-user mode and encountered QuickBooks Error H202. This error typically appears when network or hosting configuration problems prevent QuickBooks from connecting to the server. It stops users from accessing files saved on other computers. Check your network configuration, modify firewall settings, and utilize QuickBooks Tools Hub to effectively regain connectivity in order to resolve QuickBooks Error H202.