2022. 1. 7. 01:43ㆍLinux/Raspberry Pi
Raspberry Pi 3 b+ 전원 연결 후 장시간 미사용시 wifi 끊김 문제
$sudo iwconfig wlan0
wlan0     IEEE 802.11  ESSID:"SSID" 
          Mode:Managed  Frequency:2.462 GHz  Access Point: xx:xx:xx:xx:xx
          Bit Rate=65 Mb/s   Tx-Power=31 dBm 
          Retry short limit:7   RTS thr:off   Fragment thr:off 
          Encryption key:off 
          Power Management:on 
          Link Quality=57/70  Signal level=-53 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0 
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
$sudo iwconfig wlan0 power off
wlan0     IEEE 802.11  ESSID:"SSID"
          Mode:Managed  Frequency:2.462 GHz  Access Point: xx:xx:xx:xx:xx
          Bit Rate=65 Mb/s   Tx-Power=31 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=57/70  Signal level=-53 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
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