The NDIS_WWAN_CONTEXT_STATE structure represents the Packet Data Protocol (PDP) context state of the MB device.


typedef struct _NDIS_WWAN_CONTEXT_STATE {
  WWAN_STATUS        uStatus;



The header with type, revision, and size information about the NDIS_WWAN_CONTEXT_STATE structure. The MB Service sets the header with the values that are shown in the following table when it sends the data structure to the miniport driver for set operations. Miniport drivers must set the header with the same values when they send the data structure to the MB service.

Header submember Value
Revision Windows 8 miniport drivers should set this to NDIS_WWAN_CONTEXT_STATE_REVISION_2. Windows 7 miniport drivers should set this to NDIS_WWAN_CONTEXT_STATE_REVISION_1.

For more information about these members, see NDIS_OBJECT_HEADER.


The status of context activation or deactivation operation. The following table shows the possible values for this member.

Value Meaning
WWAN_STATUS_SUCCESS Context activation or deactivation succeeded.
WWAN_STATUS_FAILURE The operation failed. Miniport drivers can return this value if the context has already been activated.
WWAN_STATUS_PIN_REQUIRED The operation failed because the device requires a PIN.
WWAN_STATUS_BAD_SIM The operation failed because a bad SIM card was detected.
WWAN_STATUS_SIM_NOT_INSERTED The operation failed because the SIM card was not inserted fully into the device.
WWAN_STATUS_NOT_INITIALIZED The operation failed because the device is in the process of initializing. Retry the operation after the ready-state of the device changes to WwanReadyStateInitialized.

Miniport drivers can return the following error codes (in addition to those previously described) only in the event of a failed set PDP activation operation.

Value Meaning
WWAN_STATUS_RADIO_POWER_OFF The operation failed because the radio is currently turned off. This error code should be returned only in response to a OID_WWAN_CONNECT set request. If the radio state is off then the miniport driver should respond to OID_WWAN_CONNECT query requests with WWAN_STATUS_SUCCESS and specify the current context state as WwanActivationStateDeactivated.
WWAN_STATUS_SERVICE_NOT_ACTIVATED The operation failed because either the subscription has expired, or the device does not allow PDP activation.
WWAN_STATUS_PROVIDER_NOT_VISIBLE The operation failed because the service provider is not currently visible.
WWAN_STATUS_MAX_ACTIVATED_CONTEXTS The operation failed because the maximum number of activated contexts has been reached.
WWAN_STATUS_INVALID_ACCESS_STRING The operation failed because the access string is invalid.
WWAN_STATUS_INVALID_USER_NAME_PWD The operation failed because the user name and/or password supplied are invalid. Network specific error code may be available in uNwError .
WWAN_STATUS_PACKET_SVC_DETACHED The operation failed because packet service is detached.
WWAN_STATUS_NOT_REGISTERED The operation failed because the device is not in the registered state to perform PDP activation.
WWAN_STATUS_VOICE_CALL_IN_PROGRESS The operation failed and cannot proceed with PDP activation because a voice call is currently in progress. This value applies only to devices with voice class is set to WwanVoiceClassSeparateVoiceData.
WWAN_STATUS_CONTEXT_NOT_ACTIVATED The operation failed because the context identified by ConnectionId is not the currently activated context.


A formatted WWAN_CONTEXT_STATE object that represents the Packet Data Protocol (PDP) context state of the device.


Minimum supported client Available in Windows 7 and later versions of Windows.
Header ndiswwan.h (include Ndiswwan.h)

See Also