Cannot get 80MHz bandwith on 5G (RT-AC68U) [Solved]

Hi,

I recently bought an RT-AC68U router, but I have been having trouble fully utilizing the AC-network.

With the automatic settings, I get a 20 MHz network on channel 36.

If I try to force the bandwidth to 80 MHz, it sometimes give me a 40 MHz network on 36+40 or 52+56, but also sometimes just give me a 20 MHz network on 36 or 110.

Overriding the control channel does not make any difference.

View attachment 4222
View attachment 4223

I am currently running Merlin 378.55...

Cannot get 80MHz bandwith on 5G (RT-AC68U) [Solved]