Win32operatingsystem Result Not Found Via Omi New May 2026

This error typically appears in monitoring platforms like FortiSIEM when trying to discover or communicate with a Windows host via the Open Management Infrastructure (OMI). It indicates that while a connection may have been initiated, the specific WMI class responsible for returning operating system details (Win32_OperatingSystem) could not be retrieved. Common Causes

  1. Did not exist in the specified namespace, or
  2. Returned zero instances unexpectedly.
Get-CimInstance Win32OperatingSystem

Network Blocking: Essential ports for OMI/WMI communication—specifically TCP/135, UDP/137, and TCP/5985-5986—may be closed by a firewall. win32operatingsystem result not found via omi new

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