cesanta/mongoose-os

Hi all,

I've had an issue lately with changing STA the configuration and reconnecting to a network.

My goal is: to reconfigure WiFi credentials without having to reboot. The use case here is that the WiFi credentials were initially misconfigured (wrong password, for example), and I would like the end user to be able to correct the password without rebooting the device. The configuration is done through connecting to the ESP32 in AP mode, so I don’t want the bonding between device and user (mobile phone via app) to be broken.
My actions are: I’ve tried two methods. Each begins with setting the new credentials with mgos_sys_config_set_wifi_sta_ssid() and mgos_sys_config_set_wifi_sta_pass().

I’ve tried (1) calling mgos_wifi_disconnect() and then mgos_wifi_connect(), (2) trying to reset the WiFi sta like so:

struct mgos_config_wifi_sta sta_config = {
        .enable = true,
        .ssid = ssid,
        .pass = pass,
};

mgos_wifi_disconnect();

if (mgos_wifi_setup_sta(&sta_config)) {
        mg_rpc_send_responsef(ri, "ok");
} else {
        mg_rpc_send_responsef(ri, "couldn't set up sta");
}

where ssid and pass are the new SSID and password, respectively, and (3) seting up the entire WiFi modoule (both AP and STA) such that

mgos_wifi_setup((struct mgos_config_wifi *)mgos_sys_config_get_wifi())

in which case the AP is also restarted, which I do not want. I only want the STA to restart, but not the AP.

The result I see is: I’m still connecting to the same network. Nevertheless, observing

sta_cfg.ssid

and

sta_cfg.pass

seems to have the correct credentials. However, my ESP32 still seems to be connecting with the previous, incorrect password.

Trying to set an incorrect password, for example, will not disconnect me from the AP.
My expectation & question is: I expect to be able to smoothly change WiFi creds while the device is running without any restarts. Is this possible?

I would greatly appreciate your help! Have a great day!