Jak zwykle Twoja pomoc jest nieoceniona. Co prawda ten sposób nie działa na wersji 24 ale nakierowało mnie to na pomysł sprawdzenia wersji 23.05 w której to zadziałało bez problemu.
Teraz mam problem z z uruchomieniem AP na 2,4GHz i 5GHz na raz.
Tak działa na 2,4 lub 5GHz (tutaj 5GHz):
uci show /etc/config/wireless
wireless.radio0=wifi-device
wireless.radio0.type='mac80211'
wireless.radio0.path='platform/soc/3f300000.mmcnr/mmc_host/mmc1/mmc1:0001/mmc1:0001:1'
wireless.radio0.channel='36'
wireless.radio0.band='5g'
wireless.radio0.cell_density='1'
wireless.radio0.country='PL'
wireless.radio0.htmode='VHT80'
wireless.default_radio0=wifi-iface
wireless.default_radio0.device='radio0'
wireless.default_radio0.network='lan'
wireless.default_radio0.mode='ap'
wireless.default_radio0.ssid='OpenWrt'
wireless.default_radio0.encryption='psk2'
wireless.default_radio0.key='xxxxxx'
ale jak dodaje drugi interfejs to nie działa ani jedno 
uci show /etc/config/wireless
wireless.radio0=wifi-device
wireless.radio0.type='mac80211'
wireless.radio0.path='platform/soc/3f300000.mmcnr/mmc_host/mmc1/mmc1:0001/mmc1:0001:1'
wireless.radio0.channel='36'
wireless.radio0.band='5g'
wireless.radio0.cell_density='1'
wireless.radio0.country='PL'
wireless.radio0.htmode='VHT80'
wireless.default_radio0=wifi-iface
wireless.default_radio0.device='radio0'
wireless.default_radio0.network='lan'
wireless.default_radio0.mode='ap'
wireless.default_radio0.ssid='OpenWrt2'
wireless.default_radio0.encryption='psk2'
wireless.default_radio0.key='xxx'
wireless.wifinet1=wifi-iface
wireless.wifinet1.device='radio0'
wireless.wifinet1.mode='ap'
wireless.wifinet1.ssid='OpenWrt5'
wireless.wifinet1.encryption='psk2'
wireless.wifinet1.network='lan'
wireless.wifinet1.key='xxx'
Asus Merlin RT-AC86U + 2xRT-AC68U
OpenWRT rPi3+ E3372
rPi5 HA, rPi4 OH