Cant disable permanently power management on WiFi

Question

So I have a problem with my wifi, every time I reboot my system the power management is again 'On'. I have trier to create a "wireless" file the following code inside but no luck in this location /etc/pm/power.d :

#!/bin/sh
/sbin/iwconfig wlo1 power off

What im a missing?

Ubuntu 16.04

Solution

In Ubuntu 16.04 and above run this command to turn off power management.

sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

Reboot

Comments

[Wild Man]

What version of Ubuntu are you using?

[Nick Pampoukidis]

@WildMan 16.04, I'll edit the post

[Wild Man]

I posted the what should be the answer.