Mikrotik wi-fi and Iphone = problem

[yuminxxf]

Thank you for your responses!

Try 2048 AMSDU, mixed network mode and use the less congested channel (use the built-in frequency scanner). This won’t make your WiFi any faster but you’ll get a more reliable experience.

I can see the AMSDU option in normal wireless conf, but could not find it in caps conf.
My 5GHz channels are totally empty, no congested channel at all.

set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=20/40mhz-Ce country=netherlands disabled=no frequency=5260 installation=indoor max-station-count=50 mode=ap-bridge preamble-mode=long radio-name=funny5 security-profile=funny ssid=funny station-roaming=enabled wireless-protocol=802.11 wps-mode=disabled

almost default …

Before posting this, I have done some research. It seems that all the problem with apple device happens on 802.11ac mode. I suspect when selecting mixed modes, my iPad pro gen4 will use A/N, not AC for the full speed. Is there any way to check it?

Below is the link about the ac mode problem.
http://forum.mikrotik.com/t/wap-ac-5ghz-issues-with-iphone-xs/123625/1

Thanks again.