Hi Michel, I didn't have SAE authentication enabled, it was open mode. The latest logs give some clues. The mesh appears to have gone down and this is possibly the reason for the ping failure. After a while, the mesh discovery starts again and restores the mesh. On product B, I see the dropped_frames_no_route statistic incrementing during the period of ping failure. I'm investigating why the mesh became inactive.
Thanks for your response.
