Low TCP iperf throughput with ESP32

[msawaftah]

Hi all,

I am running the ESP Iperf example to test the wifi throughput. Refferd to the documentation I should expect a (air on lab) throuput of 20 Mbit/s and a throughput of 50-70 Mbit/s in a shieldbox.

-> docu: https://docs.espressif.com/projects/esp ... throughput

In the lab and outside the shieldbox I can see a throughput of 21 Mbit/s which is expected and great.

In the shieldbox I also see a maximum throughput of 21 Mbit/s which is wierd because I am expecting a much larger throughput because the wifi signal should be stronger and there should be no wifi interference.

Dose anyone have any idea why i am getting low throughput in the shieldbox?

Thank you all