I am using zigbee S2C modules with firmware version 4060. I have set the configuration as below for coordinator and router/end device. Here I am able to send data from router to coordinator, is been received successfully at coordinator and when data sent from coordinator to router/end device, the end device dosent receive. In transmission status frame the devivery status= 0x24 ie (Address not found) and discovery status=0x03(Route discovery) at coordinator end.
coordinator and End Device
SM No Sleep(Router)