How to Install Intel WiMAX Driver on Debian Stretch 9 Gnu/Linux

Installing

2. 2. Looking Up Card Model

   Then to Find Wireless Card Model
   Simply run the Command:

   lspci -v | grep Wireless

   But for the USB Dongles try instead with:

   lsusb -v | grep Wireless

   The grep Command refine the result following the matching Keyword.
   And in the Output you’ll easily See the Card’s Manufacturer and Model:

   

   This to make Sure the Adapter is Supported by this Firmware!
   Eventualy Check the Driver specification page to Find out All Supported Models.
   But if you Do Not find a WiMAX in the Output then instead See: firmware-ipw2x00 and firmware-iwlwifi.

3. 3. Setting Up Backports

   How to Install Backports Repository on Debian GNU/Linux

   Backports Debian Stretch Setup Guide

   GNU/Linux Debian Stretch Backports Installation Guide

   Follow instructions to Enable the ‘contrib‘ and ‘non-free‘ Sources.

4. 4. Installing Firmware

   Then to Install Intel Wireless Firmware Package
   Simply play:

   sudo apt install firmware-intelwimax wireless-tools

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

5. 5. Loading Firmware

   Now to Load Intel Wireless Adapter
   Just perform:

   sudo modprobe -r i2400m-usb ; sudo modprobe i2400m-usb