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.

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