What does NTSTATUS 0xC0220102 (STATUS_FWP_INJECT_HANDLE_STALE) mean?

STATUS_FWP_INJECT_HANDLE_STALE

The packet injection handle no longer matches a valid injection path

This status means the injection handle was once valid but no longer usable for the current path or stack state. It often indicates stale per-flow or per-compartment state after teardown or reconfiguration.

Record when the injection handle was created and which network stack generation or compartment it belongs to. Recreate stale handles after the owning stack or context changes instead of retaining them indefinitely.

What to inspect

• Recreate injection handles after compartment, interface, or callout state changes.
• Do not cache handles across teardown.
• Correlate failures with adapter restart, policy reload, or callout unload.

References for STATUS_FWP_INJECT_HANDLE_STALE

• Microsoft Open Specifications: NTSTATUS values
• Microsoft: Windows Filtering Platform
• Microsoft: WFP error codes