Thanks for your reply.
However, the problem is not that the function esp_wifi_set_bandwidth() does not work. I can also use esp_wifi_get_bandwidth() to check that the bandwidth has been successfully set to 40 MHz. My problem is that with both the 20 MHz and 40 MHz settings, I get a bandwidth of 20 ...

Hello,

I am using the ESP32-C3 for FTM. My problem is that I cannot set the bandwidth to 40 MHz when using wifi. When I check the bandwidth on the spectrum analyzer I only receive 20 MHz bandwidth and not 40 MHz. I am using the following code for wifi initialization.


wifi_init_config_t cfg ...