Disabling wifi power management on rpi3/libreelec

autostart.sh

# from : https://forum.libreelec.tv/thread/5074-wifi-issues-on-rpi-3-poor-speed-and-latency-solution/#codeLine_1_3e8919
# first install the 'network tools' add-on from the kodi repository then create a /storage/.config/autostart.sh file with 
# this as the contents.
# then reboot the pi. runnning 'iwconfig' should now show the power-management as being off.

# mpalourdio : in LE 9+, iw is already installed at /usr/sbin/iw
# just create an autostart.sh and add :

/usr/sbin/iw wlan0 set power_save off

# reboot, and check iw wlan0 get power_save : should be off


# for raspian, enter this in you /etc/rc.local
/sbin/iwconfig wlan0 power off
exit 0