I did over WS.
There were/are issues, check my posts, as I recall does not like fragmentation. ESP were very helpful & offered some patches.
In the end I cut the local ESP client out as was also quite laggy over WS so moved past the ESP32 MQTT client thing.

But, I am still not sure where/what ...

My test fixture was simply a high-speed hub connected to a simple access point. I monitored it there after not seeing anything but DHCP and ARPs over the main WiFi AP with a monitor point at the MQTT server. You would think that the example would just work out of the box right?

I'm interested in knowing if anyone has gotten the ESP-MDF MQTT example to work out of the box. I tried both the 1.0 and master from a few days ago with no success. Specifically, the root node obtained an IP address on the router but no MQTT traffic ever flowed over the router's network. I posted ...

I have started working with the ESP32 Mesh kits and ran into a problem that has me stuck after a couple days of trying to troubleshoot the root cause. First the details of the source code and test environment:

Source code https://github.com/espressif/esp-mdf

release/v1.0 of esp-mdf @ 51a070c
esp ...