No 802.11r on Mi 3G and Redmi AC2100

I run 3 access points: 2 Redmi AC2100 and one Xiaomi Mi 3G v1.
All of them are running OpenWRT 21.02.0-rc1.

I actually have roaming enabled on all APs - however, this does not seem to work. Besides the fact that the clients don't easily switch between APs as they should, the Wifi-Analyzer app doesn't show 802.11r capability in the network properties (should probably show an [R]).
I then set the logging as >>here<< and get no entry as described there.

All APs are running wpad-basic-wolfssl - this supports 802.11r.
My wireless configuration looks like this:

/etc/config/wireless
config wifi-device 'radio0'
        option type 'mac80211'
        option hwmode '11g'
        option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
        option htmode 'HT20'
        option legacy_rates '0'
        option country 'DE'
        option distance '30'
        option cell_density '2'
        option beacon_int '100'
        option channel '13'
        option rts '800'
        option frag '1552'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option ssid 'XXX'
        option encryption 'psk2+ccmp'
        option dtim_period '1'
        option key 'xxxxxxxxxxx'
        option ft_over_ds '1'
        option ft_psk_generate_local '1'
        option ieee80211r '1'

config wifi-device 'radio1'
        option type 'mac80211'
        option hwmode '11a'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
        option htmode 'VHT80'
        option channel '60'
        option country 'DE'
        option distance '30'
        option cell_density '2'
        option beacon_int '100'
        option rts '800'
        option frag '1552'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'XXX'
        option encryption 'psk2+ccmp'
        option dtim_period '1'
        option key 'xxxxxxxxxxx'
        option ft_over_ds '1'
        option ft_psk_generate_local '1'
        option ieee80211r '1'



So my question is: Is there a problem with my configuration or are the Redmi AC2100 and the Xiaomi Mi 3G simply not able to offer 802.11r?

My wifi analyzer shows FT when 802.11r is enabled, but there's a R there as well :wink:

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check out this as well. The link in that post has info on how iOS devices decide to roam.
Having 802.11r does not mean devices raom, they just roam faster... 802.11k and v help devices to decide (i think)

Ah - so if it says "WPA2-PSK+FT" (or "RSN-PSK+FT") - then 802.11r would be offered?
That would be enough for me.
This would also make sense since my SSIDs without roaming don't have the "+FT" addition.

@Ramon
Yes, thank you - I am familiar with DAWN.
However, to use this I first need to get 802.11r working.

I would assume so, pic is taken from my devices/wifi.

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Actually meant this link About wireless roaming for enterprise - Apple Support

Yes thanks again.
I never had an iPhone and I never will have an iPhone.

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