Enabling 160MHz BW on 5G-2 on GT-AX11000 only gets 80MHz enabled according to the Wireless Log. Firmware Version:126.96.36.199.384_6436
It doesnt matter if you disable the 5G-1 radio in the Professional tab, the 5G-2 never gets 160MHz up according to Wireless log under any circumstance.
5G-1 has no problem enabling 160MHz bandwidth!
Coincidence or not, I noticed the same behavior on the RT-AX92U. 5G-2 could not get 160MHz up according to Wireless log even though it clearly has that option set.
But, I don't believe in coincidences....
So clearly Asus has some work to do on their GT-AX11000 and RT-AX92U to fix true 160MHz setting on the 5G-2 band...