@davidc502 , something weird is going on ... I selected 80 Mhz in Luci, and in the wireless config I can see
option htmode 'VHT80'
But LUCI will only allow me to select 20Mhz channels in the dropdown list ... i tried forcing an 80 mhz channel like 42, 58, 106, 122, 138, 155 , but the interface fails to come online (
[ 6742.820433] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 6742.827923] br-lan: port 3(wlan0) entered blocking state [ 6742.833299] br-lan: port 3(wlan0) entered disabled state [ 6742.838850] device wlan0 entered promiscuous mode [ 6742.843630] ieee80211 phy1: change: 0x40 [ 6742.881118] device wlan0 left promiscuous mode [ 6742.885663] br-lan: port 3(wlan0) entered disabled state