unrelenting.technology

Wi-Fi not connecting (well, getting instantly deauthed due to AP-STA-POSSIBLE-PSK-MISMATCH after connecting) is apparently a relatively common problem with IoT devices. And most people seem to point to ESP8266-based ones.

Well, Iโ€™ve never had a problem with ESP, but today Iโ€™ve been setting up an RTL8711AF based device (Xiaomi qmi.powerstrip.v1) and it was failing just like that.

Turns out this device just completely fails when 802.11w Management Frame Protection is on (even optionally). Ugh. Thanks Realtek.

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