When users try switching to multi-user mode, QuickBooks Error H202 may show up with a message stating that QuickBooks cannot connect to the company file on the host computer. Multiple issues such as DNS conflicts, firewall restrictions, or incorrect service settings cause this error. A practical solution includes verifying network connectivity, pinging the server, and adding QuickBooks services to firewall exceptions. QuickBooks Tool Hub also helps repair H202 by scanning common networking errors. Not resolving this properly could block business productivity since the file sharing stops across workstations. To carry out an efficient fix of QuickBooks Error H202, you can call +1-866-408-0444 and minimize downtime.