I usually use wired networking, so it took me about year to figure out that somehow my WiFi is always limited to 54 Mbps on all channels on this router.
Tried multiple devices across multiple routers and it seems related to D7000/RAX120 specifically.
I had firmware 1.0.1.108 and just updated to .118 - no difference.
Tried changing QoS WMM, as well as AX & OFDMA settings - no effect.
Wow, another hour of changing settings randomly and I broke that barrier. Which is a good thing.
But now I have no real idea which setting was responsible in the end. And I'm sure it should not have been limiting speed anyway, all those settings are periferal, they should not have been affecting such core functionality.
Anyway, the moral of the story is "keep trying". Case closed.
