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In Linux Mint 17.3 / 18 iwconfig says the power management of my wireless card is turned on . I want to turn it off permanently or some workaround on this issue. sudo iwconfig wlan0 power off works, until I reboot the laptop. Also, if I randomly check iwconfig , sometimes it's on, despite I did run this command. I read some articles about making the fix permanent. All of them contained the first step "Go to directory /etc/pm/power.d ", which in my case did not exist. I followed these steps: sudo mkdir -p /etc/pm/power.d sudo nano /etc/pm/power.d/wireless_power_management_off I entered these two lines into the file: #!/bin/bash /sbin/iwconfig wlan0 power off And I finished with setting proper user rights: sudo chmod 700 /etc/pm/power.d/wireless_power_management_off But after ...