How to Resolve QuickBooks Error H505 in Multi-User Mode
QuickBooks Error H505 appears when the company file hosted on another system cannot be accessed. This error is commonly caused by misconfigured network settings or firewall blocking.
To fix the issue, verify that multi-user mode is enabled, ensure correct network setup, and make sure the firewall allows QuickBooks communication. If the problem continues, updating or reinstalling QuickBooks can resolve the error.