WiFi configuration for e.g. esp32 (DNS Issue)

[grob72]

I was trying to use WiFi.config command in the WiFi Library in the format reported in the IDE documentation https://www.arduino.cc/en/Reference/wiFiConfig

in particular in the form: WiFi.config(ip, dns, gateway, subnet);

but it never worked, checking the parameters then I found that the sintax is:

WiFi.config(ip,gateway,subnet,dns);
that worked perfectly.

I think it is a Typo in the IDE documentation.
Regards.
Marco

[johnwasser]

I think the problem is that ESP32 support is a third-party product that doesn't necessarily match the Arduino documentation. Have you looked at the ESP32 documentation?

https://docs.espressif.com/projects/arduino-esp32/en/latest/

Specifically:
https://docs.espressif.com/projects/arduino-esp32/en/latest/api/wifi.html#config

This shows what you have found:

bool config(local_ip, gateway, subnet, dns1, dns2);

I think they moved DNS to the end of the list so they could be made optional.