Index: scripts/wifi_start_wpa_supplicant.sh
===================================================================
diff -u -rc9f8f8cf3c6c37fc6460d8675c62c9442c4d4263 -rc1661ddfbd78f22da272b54b36ad377393f1f7ae
--- scripts/wifi_start_wpa_supplicant.sh	(.../wifi_start_wpa_supplicant.sh)	(revision c9f8f8cf3c6c37fc6460d8675c62c9442c4d4263)
+++ scripts/wifi_start_wpa_supplicant.sh	(.../wifi_start_wpa_supplicant.sh)	(revision c1661ddfbd78f22da272b54b36ad377393f1f7ae)
@@ -23,8 +23,9 @@
 
 iface=$1
 wpa_supplicant_path=$2
-wpa_cli terminate
-killall udhcpc
-killall wpa_supplicant
-sleep 1
-wpa_supplicant -B -i $iface -c $wpa_supplicant_path wext
+
+# make sure hardware is up
+ip link set $iface up
+
+# restart the wpa_supplicant service for wifi
+systemctl restart wpa_supplicant@"$iface".service