Hello,
I have set up a WIFI where I can connect to 5GHz, but older devices can not connect to 2.4GHz WIFI. Other questions/answers from here did not help me yet.
I can share all the parameters I have below or if anything additional is needed of course also.
Thank you very much for any help
Best regards
Model accoding to LuCI: D-Link DIR-2660 A1
Architecture: MediaTek MT7621 ver:1 eco:3
Firmware Version: OpenWrt 21.02.0 r16279-5cc0535800 / LuCI openwrt-21.02 branch git-21.231.26241.422c175
Kernel Version: 5.4.143
cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option channel '11'
option hwmode '11g'
option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option cell_density '0'
option country 'AT'
option htmode 'HT20'
config wifi-iface 'default_radio0'
option device 'radio0'
option mode 'ap'
option ssid '...'
option network 'lan'
option encryption 'sae-mixed'
option ieee80211w '1'
option key 'pass'
option wds '1'
option wmm '0'
config wifi-device 'radio1'
option type 'mac80211'
option channel '36'
option hwmode '11a'
option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
option cell_density '0'
option htmode 'VHT80'
option country 'AT'
config wifi-iface 'default_radio1'
option device 'radio1'
option mode 'ap'
option ssid '...'
option ieee80211w '2'
option encryption 'sae-mixed'
option network 'lan'
option key 'pass'