Mi AI speaker cannot be configured

Hi
I received my Mi AI speaker and I tried to configured it with my hAP ac^2 Mikrotik router.

Mi Home android app is communicating with my Android phone very well, but when the device is trying to connect on my router it seem to loose his IP address and then deauth the wifi.

Does anybody has had same issue? any solution?
Thanks in advanced for your help
Regards,
Sphairos