--- etc/network/interfaces.d/wlan0.cfg.orig	2017-11-13 12:19:11.676636013 -0600
+++ etc/network/interfaces.d/wlan0.cfg	2017-11-13 12:20:35.673604078 -0600
@@ -1,3 +1,4 @@
-allow-hotplug wlan0
-iface wlan0 inet dhcp
-wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
+auto wlan0
+iface wlan0 inet static
+    address 192.168.42.1
+    netmask 255.255.255.0