QuickBooks Error H505 is a problem with multi-user mode that arises when users try to access a company file that is on another machine. Incorrect hosting configuration, a missing network setup, or firewall constraints can all cause this issue. It can be fixed by adjusting network drivers, checking firewall permissions, and tweaking hosting settings. Please contact us at
+1.833.802.0002 if you would like to talk with a QuickBooks support specialist right away.
