AR750S Slate and AT&T MF279 Hotspot

I’d like to turn off the wireless function of the hotspot, and use it in bridge mode with the Slate doing all the routing, wifi etc. I see AT&T doesn’t allow the wifi to be shut off.

I want to take advantage of WPA3 and usb file sharing. What would you recommend? Is there a guide out there I’m not able to find? Thanks.

Some modems can be set as Tethering or Modem mode. So you can check if your MF279 can be set as modem mode.