What does HRESULT 0xC03B0005 (HNS_SUBNET_NOT_FOUND) mean?

 
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HNS_SWITCH_NOT_FOUND HNS_ADAPTER_NOT_FOUND

HNS_SUBNET_NOT_FOUND

HNS_SUBNET_NOT_FOUND is an HRESULT used by Windows Host Networking Service (HNS). It indicates that the endpoint IP configuration does not map to a configured subnet in the target network.

What to check

  • Compare the endpoint IP address and prefix with the subnet definitions of the selected HNS network.
  • Verify that the requested address is inside the intended pool and is not from another network.
  • Correct the network configuration before creating or updating the endpoint.

Microsoft documentation on Windows container networking and HNS


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