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STATUS_FWP_L2_DRIVER_NOT_READY
WFP layer-two filtering is not ready yet
These status values come from the Windows Filtering Platform path. For STATUS_FWP_L2_DRIVER_NOT_READY, wFP classifies traffic through layers, filters, provider contexts, sublayers, and callouts; IPsec policy is also configured through WFP at IKE/AuthIP-related layers.
Some WFP layers operate at MAC or layer-two boundaries. This status means that part of the stack is not ready when a filter, callout, or injection operation is attempted.
For STATUS_FWP_L2_DRIVER_NOT_READY, for diagnostics, keep the failing API call, layer or sublayer key, provider context type, filter condition set, callout id, engine state, and whether the Base Filtering Engine, IKEEXT, TCP/IP stack, or L2 path was ready.
What to inspect
- Retry after network adapter and NDIS initialization.
- Check whether the operation targets MAC layers too early in boot or resume.
- Correlate with adapter arrival, miniport state, and binding changes.
References for STATUS_FWP_L2_DRIVER_NOT_READY
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: Windows Filtering Platform
- Microsoft: WFP filtering layer identifiers
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