Wifi: Changing Hostname

[tim-hilt]

I tried adapting the wifi-station-example (https://github.com/espressif/esp-idf/bl ... ple_main.c), so that the hostname is changed via

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esp_netif_set_hostname

.

More specifically, I changed this line from the example:

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esp_netif_create_default_wifi_sta();

to this:

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esp_netif_t* netif = esp_netif_create_default_wifi_sta();
  ESP_ERROR_CHECK(esp_netif_set_hostname(
      netif, "something"));

The code compiles and runs just fine, however the hostname is still showns as "espressif" when looking at my home-network.

How do I have to change the wifi-station-example, so that the hostname is adapted?

[chegewara]

Did you try to start wifi before _set_hostname?

[tim-hilt]

Did you try to start wifi before _set_hostname?

Thanks for your reply! I moved the _set_hostname call after

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ESP_ERROR_CHECK(esp_wifi_start() );

, but unfortunately the hostname still isn't changed.

Do I have to change the hostname after wifi is connected maybe? Or as soon as there is an IP address assigned?

[chegewara]

To be honest i dont know what is the correct order, because i am using half-automated library for this, but i have some weird observation.
It is working on some routers and on the other routers it shows old "espressif" hostname.
Im guessing that the 2nd case, when it shows "espressif" hostname is not updating it and remember first hostname associated with esp32 MAC.

Works on huawei HG8245Q2, is not working on TP-link deco M4, with exactly the same code.


PS after short time even tp-link deco is updating esp32 according to hostname set in the code