我在使用联想 y740 Legion。
Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
前 5 分钟:
sudo iwconfig
lo no wireless extensions.
wls13 IEEE 802.11 ESSID: "C17H"
Mode:Managed Frequency:5.22 GHz Access Point: 43:CD:B2:54:9C:DE
Bit Rate=866.7 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=59/70 Signal level=-51dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:53 Missed beacon:0
en12 no wireless extensions
10分钟后:
sudo iwconfig
lo no wireless extensions.
wls13 IEEE 802.11 ESSID: "C17H"
Mode:Managed Frequency:5.22 GHz Access Point: 43:CD:B2:54:9C:DE
Bit Rate=234 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=64/70 Signal level=-46dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:83 Missed beacon:0
en12 no wireless extensions
启动后已过 30 分钟
sudo iwconfig
lo no wireless extensions.
wls13 IEEE 802.11 ESSID: "C17H"
Mode:Managed Frequency:5.22 GHz Access Point: 43:CD:B2:54:9C:DE
Bit Rate=26 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=64/70 Signal level=-45dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:109 Missed beacon:0
en12 no wireless extensions
30分钟后:
连接速度又回升到 400Mb/s 左右。这个循环反复发生。我不知道是什么原因造成的,也不知道我能做些什么来保持稳定的连接。
答案1
这很可能是由于 中的激进节能配置造成的/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
。试试这个:
打开上面的系统文件:
sudo vi /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
你会看到这个:
[connection]
wifi.powersave = 3
将powersave
值从更改3
为2
。
其他可能的值:
NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0): use the default value
NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1): don't touch existing setting
NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2): disable powersave
NM_SETTING_WIRELESS_POWERSAVE_ENABLE (3): enable powersave