Hello!
Last time I've described issue with connection problems in large thread network https://devzone.nordicsemi.com/f/nordic-q-a/29867/thread-mesh-network-capacity-problem. I've updated software and everything works fine on my desk. But when I've tried to locate about 25 devices across 3-storeys building packet drop rate tramendously increases for nodes with few (2-3) hops on the way to border router. My application sends packet every 1 minute by COAP and waits for acknowledgement from server. In case of lack of ACK for packet, node puts it to buffer and tries to retransmit after next wake-up. In some cases node transmits 3-4 times more packets than it should be nominally. When ACK is dropped, my server still records arrived message. I can see that some of messaages are doupled or tripled in database due to retransmissions.
I've connected this issue with number of hops on way to BR. Nodes on path of packet are in good signal range to each other.
Is it possible to improve this situation and decrease packet drop rate?
Best regards,
Wojciech Rzepecki
