The QuickBooks software fails to establish a connection when a user tries to view a company file that is on a different computer, resulting in the QuickBooks Company File Error H505. Firewall, DNS server, or wrong hosting setup settings are the most common causes of this error. It can be fixed by making sure QuickBooks Database Server Manager is operating on the host machine, upgrading firewall permissions, and setting up appropriate hosting settings. For immediate assistance, please contact our QuickBooks Experts Team at 1.855.738.2784.
