o.k. thank you. Now it's clear and it works. Thanks a lot. Now I am trying to obtain infos (e.g. ssid(s) or IPs) of the stations connected to my AP. I found an example on that using "esp_wifi_get_station_list". But this does not seem to work because this function does not seem to be available in ESP...

Thank You for Your fast answer. But unfortunately the most importent thing for me is missing:
How do You populate the union "wifi_config_t"?

@imtiaz:
nice that You found a solution for this problem!
Would You be so nice to share it so that also other people are delighted?

kind regards

Squonk