Maybe it is caused by compatibility.
Thanks for your informations. MT300N-V2 didn’t start 4-way handshake after authenticated and associated, but not sure why.
They are authenticated:
They are associated:
But MT300N-V2 didn’t start 4-way handshake, InterCor_ec:20:39 continues to send association request.
I saw InterCor_ec:20:39 enabled short preamble, while mt300n-v2 is disabled it by default.
The successful Chromebook:
