The problem of create wifi AP in Dragon Board 410C



I am trying to create wifi AP in DragonBoard 410c to make my PC via SSH to connect it, but it had some problem.

The wifi AP created successful, all devices scan it ok. But some time later, these devices lost of link, and can not link to it again, but wifi AP always is visible. In DB410c I open Terminal and cat /proc/kmsg, the kernel show some msg is [ wcn36xx: ERROR hal_remove_bsskey response failed err=6 ].