Error: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

Windows Server
6.5 and older
7.0-8.5
9.0-9.7
9.8
https://kb.netwrix.com/1381
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  1. The Netwrix Auditor System Health log contains the following errors/warnings:
  • <timestamp>: <server>: The following error occurred on agent installation: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA). Make sure that you have administrative privileges, and the Windows Management Instrumentation (WMI) service is running on the target server.
  • <timestamp>: <server>: The following error occurred when analyzing changes for server <server>. Agent operation failed due to the following error: Failed to update the agent on the following server: <server>.
  1. Netwrix Auditor Windows Server Change Summary contains the following errors/warnings:
  • <timestamp>: <server>: The following error occurred when collecting data from the Microsoft-Windows-TaskScheduler/Operational log: Failed to open log ‘Microsoft-Windows-TaskScheduler/Operational’ (API used: Vista). Error details: The RPC server is unavailable. (Error number: 0x800706BA)
  • <timestamp>: <server>: The WMI Classes data provider failed to get the information on “Win32_<ClassName>” due to the following error: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

The Windows Management Instrumentation (WMI) ports are blocked either by Windows Firewall service of the problematic machine or by the 3rd party Firewall between Netwrix server and the problematic machine.


In order to resolve the issue, perform the following steps:

  1. Disable the Windows Firewall service (or 3rd party Firewall) on the problematic server.
  2. Configure Windows Firewall service according to documentation.
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