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BUGCODE_NETADAPTER_DRIVER
NetAdapterCx driver violation
BUGCODE_NETADAPTER_DRIVER is bug check code 0x0000019E. The built-in table identifies it as BUGCODE_NETADAPTER_DRIVER
; the useful diagnostic question is what Windows component raised the stop and which invariant failed.
This bug check is associated with the NetAdapter class extension model. It points to a network adapter driver contract problem rather than a generic network outage.
How to read the parameters
- The exact subcode and stack identify which NetAdapterCx rule was violated.
- The offender can be a NIC driver, virtual network adapter, or extension path that interacts with NDIS/NetAdapterCx objects.
- Interpret it with WDF and network-driver state together.
What to check in the dump
- Check NetAdapterCx/WDF logs, driver version, NDIS verifier output, and whether the adapter is physical or virtual.
- Correlate with packet offload, reset, surprise removal, low power, and high-throughput workloads.
- Do not diagnose it from IP-level symptoms alone; the crash is in the driver-model contract.
References
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