Bug: Packet Dropping Issue at Root Node with Large Payload Sizes in ESP WiFi Mesh

[adirsingh96]

Hello everyone, I have been working with ESP WiFi Mesh and I am facing an issue where the child node acknowledges that the data has been successfully sent to the root, but the root drops the packet without showing any error or warning.

I have 13 nodes connected in my mesh network. The data is sent from the child nodes to the root node every 17 seconds. It works well when the payload size is around 60 bytes, but I encounter the issue at around 700 bytes. I am conducting more tests with different payload sizes.

I am using the function mwifi_write() to send the data from the child node and mwifi_root_read() to receive the data at the root.

I have checked the technical documentation of the mesh from here: https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/esp-wifi-mesh.html, but they haven't mentioned the payload size on which they have tested the mesh network.

I have attached an image of the mesh configuration. Has anyone else faced this issue or can suggest any other debugging steps I can try?