LAUNCHXL-CC26X2R1: I am trying to get the Network Key by sending the NWK_GET_NWK_KEY_REQ to the NWK_MGR .The status is getting as status = ZInvalidParameter.

I am trying to get the Network Key by sending the NWK_GET_NWK_KEY_REQ to the NWK_MGR. And sending request command to the NWK_MGR is fine.But in the secNwkKeyGetRsp i am getting the status as the  status = ZInvalidParameter.And from the  NWK_MGR>>>>>>>>>>>SMPLAPP]i.e to the  NwkGetNwkKeyCnf I am getting status as status = STATUS_BUSY.

Please find the flow in the attachments.