Nighthawk M1 and Orbi

I am at work today, but will try the ideas tomorrow.  The Netgear nighthawk M1, is the only modem avaliable.  It runs on ATT towers.  There is no broadband service besides using satalite internet, that was slow and unreliable at best, but have great cell phone service, so we went with LTE internet, and use the Orbi mesh system to get it through out the house.  The only way I could get it work was leaving the WIFI on on the Hotspot, and set the orbi to AP mode.  I will see if I can update the other settings tomorrow when I get home, and try to get it.