We have a model of router 1, 3 endpoints, one coordinator.
S2C Pro and All in API2 (FirmW#4055) EndPoint, router and Coordinator have the same ST SP. only EP are fixed SM5 (which defines them as EP) the coordinator sends a packet to each EP one after another. all are in an office, without obstacle, we have an acknowledgment of receipt, ie non delivred TX status (deliver_status! = "00") goshawks 30%, which seems to us enormous.
Why the failure rate?