In the "show mws member" output, "mode": "11ac". It also appears as "AC" in Selftest. If the data is taken from the "show mws member" output, how can it be wrong on the interface when the "show mws member" output has the correct data ?
My device is already connected with 5ghz, not 2.4ghz. 5ghz 2x2 80mhz
In this case, the data in the "show mws member" output matches the "mode" data on the interface of the extender device, but the data on the controller device does not match.
Contrary to what you say, the data on the interface of the controller device should be corrected, not the data on the interface of the extender device.
show mws member (controller)
controller
extender