QuickBooks Error H202 occurs when a user attempts to access a company file located on another computer but QuickBooks fails to connect. This error commonly appears in multi-user mode when the software cannot reach the server due to misconfigured hosting settings, blocked ports, or firewall issues. A typical cause is the absence of communication between the workstation and the host computer.

To resolve this, start by using the QuickBooks Tool Hub, a free utility that includes network diagnostic tools. Check if the QuickBooks Database Server Manager is installed and running on the server. Make sure the Windows firewall allows communication on specific ports used by QuickBooks. Also, verify that only the server is hosting the file while workstations have multi-user hosting disabled.

Error H202 disrupts collaboration and slows down productivity. If you’re unsure about the technical steps, it’s best to contact a QuickBooks professional to avoid data mismanagement. Fixing this error restores proper network access and allows seamless multi-user functionality within QuickBooks Desktop.