Retransmission flags in WiFi beacon frames in esp8266

[kuzulis]

Hi all.

We are use the ESP8266 chip in the WiFI softap mode, with the following settings:

* The connection attempts are prohibited (are set to 0).
* The country code is '00'
* The beacons interval -every 100 msec.

But we faced with a strange behaviour, is that after a long work, the advertized beacons may contains the re-transmittion flags. But, it is strange, because the beacon frames should not be confirmed, not re-transmitted:

[Her Mary]

Which version of ESP8266 SDK are you using? How long is "a long work"?