Will disabling Wi-Fi power saving hurt battery life?

Slightly, typically under 5% on laptops. Most users consider it a worthwhile trade for a stable connection.

Stop Wi-Fi from disconnecting every few minutes on Linux

Before you begin

Match the environmentUse this guide only for Ubuntu 24.04, Fedora 41, Arch (2026), Debian 13 or a clearly compatible setup.

Protect recoveryBack up important data and save encryption or account recovery keys before changing system state.

Know when to stopMake one change at a time and stop if the result differs from what the guide describes.

Problem overview

Wi-Fi connects fine but silently drops every few minutes, then reconnects. journalctl shows wlan0: deauthenticating or iwlwifi firmware errors.

Common causes

NetworkManager Wi-Fi power saving putting the radio to sleep
iwlwifi (Intel) firmware features misbehaving with certain routers
Aggressive roaming between 2.4 GHz and 5 GHz bands with the same SSID

Solution 1: Disable Wi-Fi power saving (fixes ~70% of cases)

sudo tee /etc/NetworkManager/conf.d/wifi-powersave-off.conf <<'EOF'
[connection]
wifi.powersave = 2
EOF
sudo systemctl restart NetworkManager

Value 2 disables power saving; 3 enables it (the default on many distros).

Solution 2: Tame iwlwifi on Intel cards

Check your card first:

lspci -k | grep -A3 -i network

If the driver is iwlwifi, disable the problematic features:

sudo tee /etc/modprobe.d/iwlwifi-fix.conf <<'EOF'
options iwlwifi power_save=0
options iwlmvm power_scheme=1
EOF
sudo reboot

Note

On kernels 6.7+ you can verify the options applied with systool -v -m iwlwifi after reboot.

Solution 3: Pin the connection to one band

If your router broadcasts one SSID on both bands, lock the connection to 5 GHz:

nmcli connection modify 'YourSSID' 802-11-wireless.band a
nmcli connection up 'YourSSID'

Caution

Use band a (5 GHz) only if signal strength is good where you work; otherwise pin to bg (2.4 GHz) for range.

Confirm the result

Repeat the exact action that originally triggered the problem.

Confirm the original error or symptom is gone and no new warning has appeared.

If the guide changed a driver, service, package, or system setting, restart once and test again.

If the result is worse or unexpected, stop. Reverse only the last change using its documented restore option; if none is documented, use your backup or qualified support.

Stop Wi-Fi from disconnecting every few minutes on Linux

Before you begin

Problem overview

Common causes

Solution 1: Disable Wi-Fi power saving (fixes ~70% of cases)

Solution 2: Tame iwlwifi on Intel cards

Solution 3: Pin the connection to one band

Confirm the result

Questions about this fix

Weighted Consensus Protocol

Did this solution resolve your issue?

Fix DRIVER_IRQL_NOT_LESS_OR_EQUAL blue screen on Windows 11

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Before you begin

Problem overview

Common causes

Solution 1: Disable Wi-Fi power saving (fixes ~70% of cases)

Solution 2: Tame iwlwifi on Intel cards

Solution 3: Pin the connection to one band

Confirm the result

Questions about this fix

Weighted Consensus Protocol

Did this solution resolve your issue?

Related fixes

Fix DRIVER_IRQL_NOT_LESS_OR_EQUAL blue screen on Windows 11

Discussion (0)

Join the Discussion