wireless network disconnected ubuntu
#oppen file
/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
#set value as:
wifi.powersave = 2
--
#other values
/**
* NMSettingWirelessPowersave:
* @NM_SETTING_WIRELESS_POWERSAVE_DEFAULT: use the default value
* @NM_SETTING_WIRELESS_POWERSAVE_IGNORE: dont modifie existing setting
* @NM_SETTING_WIRELESS_POWERSAVE_DISABLE: disable powersave
* @NM_SETTING_WIRELESS_POWERSAVE_ENABLE: enable powersave
*
* These flags indicate whether wireless powersave must be enabled.
**/
typedef enum {
NM_SETTING_WIRELESS_POWERSAVE_DEFAULT = 0,
NM_SETTING_WIRELESS_POWERSAVE_IGNORE = 1,
NM_SETTING_WIRELESS_POWERSAVE_DISABLE = 2,
NM_SETTING_WIRELESS_POWERSAVE_ENABLE = 3,
_NM_SETTING_WIRELESS_POWERSAVE_NUM, /*< skip >*/
NM_SETTING_WIRELESS_POWERSAVE_LAST = _NM_SETTING_WIRELESS_POWERSAVE_NUM - 1, /*< skip >*/
} NMSettingWirelessPowersave;