What does HRESULT 0x80320104 (FWP_E_DROP_NOICMP) mean?

 
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FWP_E_IKEEXT_NOT_RUNNING ERROR_NDIS_INTERFACE_CLOSING

FWP_E_DROP_NOICMP

FWP_E_DROP_NOICMP is a WFP classification result indicating that a packet should be dropped and that no ICMP response should be sent. It is not normally a policy-installation error.

How to investigate it

  • Find the matching filter, layer, and provider that made the discard decision.
  • Do not expect an ICMP unreachable message; packet traces may show a silent local drop instead.
  • Use a short WFP capture or packet-loss trace while reproducing the specific traffic flow.
netsh wfp capture start cab=on file=C:\Temp\wfpdiag.cab

Microsoft: netsh wfp

Microsoft: WFP operation

Microsoft: WFP error codes


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