Public bug reported:
As the headline says. On the support fora that I frequent, many people
report unstable and unreliable WiFi connections because of this. In
those cases, when power management for the WiFi chipset is turned off,
the connection immediately improves a lot.
Therefore the default for WiFi power management should be "off", non
"on".
Workaround for those who don't want to wait for the fix:
sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
Reboot.
When there's no such .conf file yet:
sudo touch /etc/NetworkManager/conf.d/default-wifi-powersave-off.conf
echo "[connection]" | sudo tee /etc/NetworkManager/conf.d/default-wifi-
powersave-off.conf
echo "wifi.powersave = 2" | sudo tee -a
/etc/NetworkManager/conf.d/default-wifi-powersave-off.conf
Reboot.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: instability management networkmanager power wifi
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https://bugs.launchpad.net/bugs/1960817
Title:
Network Manager sets powersave on by default, thus making many WiFi
connections unreliable
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