shenjun7

Fixed-root network only layer2 nodes will detect disconnection when root disappeared. At this time esp_mesh_send() will return ESP_ERR_MESH_DISCONNECTED. If esp_mesh_send() block is in the lower-level nodes for a long time,...

You can increase the qsize by esp_mesh_set_xon_qsize() or menuconfig-> MDF Mwifi ->Transmission config, or decrease the number of mesh max connections.