diff --git a/live_exam_os/Dockerfile b/live_exam_os/Dockerfile
index 00c85e4c4080b79d8f6c7ec073f4d8bb0f7e117f..20b31dc46e35f8ad841ec43ad1b7db621206ff8d 100644
--- a/live_exam_os/Dockerfile
+++ b/live_exam_os/Dockerfile
@@ -12,24 +12,24 @@ ARG config_dir
 
 WORKDIR /live-default
 
-## add live-cd additionnal packages
+## Add live-cd additionnal packages
 ADD ${config_dir}/packages.list.chroot config/package-lists/
 
-## packages to be removed
+## Packages to be removed
 ADD ${config_dir}/removepkg.hook.chroot config/hooks/live/
 
-## add swiss-french keyboard config
+## Add swiss-french keyboard config
 ADD ${config_dir}/keyboard/keyboard config/includes.chroot/etc/default/
 
-## run "nexus-exam" as soon as user logs in
+## Run "nexus-exam" as soon as user logs in
 ADD ${config_dir}/nexus-exam config/includes.chroot/usr/local/bin/
 ADD ${config_dir}/nexus-exam.desktop config/includes.chroot/etc/xdg/autostart/
 
-## run various screen settings as soon as user logs in
+## Run various screen settings as soon as user logs in
 ADD ${config_dir}/screen/screen_settings.sh config/includes.chroot/usr/local/bin/
 ADD ${config_dir}/screen/screen_settings.desktop config/includes.chroot/etc/xdg/autostart/
 
-## systemd service to set various screen settings (does not work - not sure why)
+## Systemd service to set various screen settings (does not work - not sure why)
 # ADD ${config_dir}/systemd/screen_settings.sh config/includes.chroot/usr/local/bin/
 # RUN chmod +x config/includes.chroot/usr/local/bin/screen_settings.sh
 # ADD ${config_dir}/systemd/screen_settings.service config/includes.chroot/etc/systemd/system/
@@ -37,7 +37,7 @@ ADD ${config_dir}/screen/screen_settings.desktop config/includes.chroot/etc/xdg/
 # RUN mkdir config/includes.chroot/etc/skel/
 # RUN echo "export NEXUS_SERVER=${server_ip}\nexport NEXUS_CERT=/etc/ssl/certs/nexus-server.pem\n" >> config/includes.chroot/etc/skel/.xsessionrc
 
-## customize xfce4 desktop
+## Customize xfce4 desktop
 ADD ${config_dir}/xubuntu-development.png config/includes.chroot/usr/share/xfce4/backdrops/xubuntu-development.png
 ADD ${config_dir}/xfce/xfce4-desktop.xml config/includes.chroot/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/
 ADD ${config_dir}/xfce/xfce4-panel.xml config/includes.chroot/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/
@@ -48,28 +48,29 @@ ADD ${config_dir}/xfce/xfwm4.xml config/includes.chroot/etc/xdg/xfce4/xfconf/xfc
 ## Install i3 theme for xfwm4
 ADD ${config_dir}/themes config/includes.chroot/usr/share/themes/
 
-# syslinux (bios) cfg
+# Install syslinux (bios) cfg
 ADD ${config_dir}/bootloader/isolinux.cfg config/includes.binary/isolinux/isolinux.cfg
 ADD ${config_dir}/bootloader/isolinux_splash.png config/includes.binary/isolinux/splash.png
-# grub (uefi) cfg
+# Install grub (uefi) cfg
 ADD ${config_dir}/bootloader/grub_splash.png config/includes.binary/boot/grub/splash.png
 ADD ${config_dir}/bootloader/grub_config.cfg config/includes.binary/boot/grub/config.cfg
 ADD ${config_dir}/bootloader/isolinux_menu.cfg config/includes.binary/isolinux/menu.cfg
 ADD ${config_dir}/bootloader/isolinux_stdmenu.cfg config/includes.binary/isolinux/stdmenu.cfg
 
-# server pub cert to be installed (system wide)
+# Install nexus server pub cert system wide
 #ADD ${config_dir}/${nexus_cert} config/includes.chroot/usr/share/ca-certificates/nexus-server/nexus-server.crt
 
-# ntp server configuration
+# NTP server configuration
 ADD ${config_dir}/ntp/timesyncd.conf config/includes.chroot/etc/systemd/
 
-# firewall hook ran at boot time
+# Firewall hook ran at boot time
 ADD ${config_dir}/boot_hooks/firewall config/includes.chroot/lib/live/config/9999-firewall
 RUN echo "firewall ${server_ip} ${server_port}\n" >> config/includes.chroot/lib/live/config/9999-firewall
 
-# install wifi template
-ADD ${config_dir}/wifi/WIFI.nmconnection config/includes.chroot/etc/NetworkManager/system-connections/
-RUN chmod 0600 config/includes.chroot/etc/NetworkManager/system-connections/WIFI.nmconnection
+# Install wifi connections.
+# The prefix (here *) must match wifi SSIDs.
+ADD ${config_dir}/wifi/*.nmconnection config/includes.chroot/etc/NetworkManager/system-connections/
+RUN chmod 0600 config/includes.chroot/etc/NetworkManager/system-connections/*.nmconnection
 
 # script hook to set password for nexus user (pwd is "pipo")
 # pwd is the crypt's perl function's first argument. Second arg is salt.
@@ -78,11 +79,11 @@ RUN chmod 0600 config/includes.chroot/etc/NetworkManager/system-connections/WIFI
 #    echo  "' nexus\n" >> config/includes.chroot/lib/live/config/0500-user-password.hook.chroot && \
 #    chmod 0750 config/includes.chroot/lib/live/config/0500-user-password.hook.chroot
 
-# script hook so that user nexus has no password
+# Script hook so that user nexus has no password
 RUN echo -n "#!/bin/sh\npasswd -d nexus\n" > config/includes.chroot/lib/live/config/0500-user-password.hook.chroot && \
     chmod 0750 config/includes.chroot/lib/live/config/0500-user-password.hook.chroot
 
-## add exam config
+## Add config directory
 ADD ${config_dir}/config auto/
 
 RUN lb config
diff --git a/live_exam_os/config/wifi/WIFI.nmconnection b/live_exam_os/config/wifi/SOME_SSID.nmconnection.example
similarity index 68%
rename from live_exam_os/config/wifi/WIFI.nmconnection
rename to live_exam_os/config/wifi/SOME_SSID.nmconnection.example
index 0f79bf43067e405a86fa00bf02319c9cd8dc49ae..123ca387635d62d2adc3ad60b8ba1ca1584dcb5d 100644
--- a/live_exam_os/config/wifi/WIFI.nmconnection
+++ b/live_exam_os/config/wifi/SOME_SSID.nmconnection.example
@@ -1,34 +1,33 @@
+; The various WIFI connection files can be found in:
+; /etc/NetworkManager/system-connections
+
 [connection]
 ; Name of the connection as shown by Network Manager
-id=wifi-nexus
+id=example
 ; A random UUID referencing the connection
 uuid=8a065b14-beb3-4f28-97b5-f560c368ae12
 type=wifi
-permissions=
 
 [wifi]
 ; Whether the SSID is hidden or not (true/false)
-hidden=true
-mac-address-blacklist=
+hidden=false
 ; Name of your WIFI SSID
-ssid=change_me
+ssid=example
 
 [wifi-security]
 key-mgmt=wpa-eap
 
 [802-1x]
 eap=peap;
-identity=
-password=
+identity=janedoe
+password=my_super_strong_password
 phase2-auth=mschapv2
 
 [ipv4]
-dns-search=
 method=auto
 
 [ipv6]
 addr-gen-mode=stable-privacy
-dns-search=
 method=auto
 
 [proxy]