Is it possible to force 802.11g?

[andrea-m1]

Hi, I am troubleshooting a problem with 802.11n. Is it possible to force the module to use 802.11g only somehow?

[sandeepmistry]

Hi @andrea-m1,

This feature is not supported at this time. I've marked it as an enhancement.

If you'd like to propose a pull request in the mean time that would be great!

[tomazas]

Protocol selection could be implemented in "arduino\libraries\WiFi\src\WiFi.cpp" with additional call to esp_wifi_set_protocol, e.g.:
uint8_t band = WIFI_PROTOCOL_11B|WIFI_PROTOCOL_11G|WIFI_PROTOCOL_11N;
esp_wifi_set_protocol(_interface, band);

before the esp_wifi_start(); is invoked.

However, currently it is not possible to force ESP-IDF to use G specific protocol.
Only three options 802.11b, 802.11b/g or 802.11b/g/n are supported and neither of them is pure 802.11g.

See official code docs here for proof.

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Based on the issue count of espressif the bad news is that you should not expect this feature to be implemented anytime soon.
Furthermore if your AP works only with higher (>802.11b) data rates the ESP-IDF will still try to send some low-rate junk (of 802.11b protocol) over the air.

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Offtopic - I'm just suprised how boldly and irresponsibly u-blox selected the cheapest so-incomplete espressif WiFi solution for the NINA devices.