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ERROR_VMCOMPUTE_PROTOCOL_ERROR
The failure is inside the compute control protocol
ERROR_VMCOMPUTE_PROTOCOL_ERROR means communication between Hyper-V Host and Guest Compute Services failed at the protocol layer. A connection may exist and the message type may be known, yet fields, sequencing, framing or response semantics are inconsistent with the negotiated contract.
Because container runtimes often wrap HCS errors, the original result JSON and host/guest event sequence are essential. Application network settings, published ports and DNS are downstream of this control path and normally do not explain the protocol failure.
Evidence and corrective action
- Preserve the unmodified HCS operation result and the first protocol-related event on each endpoint.
- Compare host, base-image and utility-VM servicing levels for unsupported mixtures.
- Check whether the error follows a specific operation such as process creation, shutdown or property query.
- Rebuild derived images when old layers or guest components survived a host upgrade.
- Escalate with reproducible HCS configuration and version data rather than only the final Docker or containerd message.
References
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