5G channels in U-NII-3 not working for RE650
I have a RE650 operating in high speed mode with our Netgear R7800 router where I use the 5G band to communicate between router and extender and extender is broadcasting 2.4. The 5G channel width is set to 80Mhz and selecting channels 36-48 U-NII-1 works fine with the extender but if we try channels 149-165 U-NII-3 the extender does not appear to see the signal and the main indicator light (big circle) at the front turns off. Other 5G clients connect with the router on U-NII-3 channels without issues so I'm a little lost as to why the RE650 extender does not. I would prefer to use U-NII-3 as I have a neighbor using U-NII-1.