HRESULT 0xC03B0002 (HNS_ENDPOINT_NOT_FOUND): meaning and diagnosis

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Description:

Host Networking Service could not find the requested network endpoint.

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HNS_NETWORK_NOT_FOUND	HNS_LAYER_NOT_FOUND

HNS_ENDPOINT_NOT_FOUND

HNS_ENDPOINT_NOT_FOUND is an HRESULT used by Windows Host Networking Service (HNS). It indicates that the endpoint was deleted, never created, or was addressed with a stale identifier.

What to check for HNS_ENDPOINT_NOT_FOUND

Enumerate endpoints on the intended network and verify the endpoint GUID used by the operation.
Check container lifecycle logs for a prior stop, removal, or failed endpoint-creation operation.
Do not reuse endpoint identifiers persisted from an earlier container or network instance.

Microsoft documentation on Windows container networking and HNS

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