raspberry-pi-wifi-error
冬柠 Lv3
  2022-05-16 08:43:15 2022-05-16 08:43   2022-05-16 08:47:55    310 Words  1 Mins  

On raspberry pi 4b,two reasons cause wifi error.

usb 3.0 interfere with wifi

reproduce:

sudo wpa_supplicant  -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
pplicant.conf 

Successfully initialized wpa_supplicant
wlan0: Trying to associate with SSID 'SZMIFI'
wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
wlan0: Trying to associate with SSID 'SZMIFI'
wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
wlan0: Trying to associate with SSID 'SZMIFI'
wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
wlan0: Trying to associate with SSID 'SZMIFI'
wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="SZMIFI" auth_failures=1 duration=10 reason=CONN_FAILED
wlan0: CTRL-EVENT-SSID-REENABLED id=0 ssid="SZMIFI"
wlan0: Trying to associate with SSID 'SZMIFI'
wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=16
wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="SZMIFI" auth_failures=2 duration=20 reason=CONN_FAILED
^Cnl80211: deinit ifname=p2p-dev-wlan0 disabled_11b_rates=0
p2p-dev-wlan0: CTRL-EVENT-TERMINATING 
nl80211: deinit ifname=wlan0 disabled_11b_rates=0

fix: switch to usb 2.0

HDMI is jamming its own wifi

screen definition higher than 1920*1080 will cause wifi stop working.

fix:keep screen definition to 1920*1080 and apply,in the Preference->Screen Configuration

keyboard and mouce sometimes dont respond.

fix: disable hdmi until raspberry pi boot with keyboard and mouce

Reference

  • Post title：raspberry-pi-wifi-error
  • Post author：冬柠
  • Create time：2022-05-16 08:43:15
  • Post link：raspberry-pi-wifi-error/
  • Copyright Notice：All articles in this blog are licensed under BY-NC-SA unless stating additionally.
  1. 1. usb 3.0 interfere with wifi
  2. 2. HDMI is jamming its own wifi
  3. 3. keyboard and mouce sometimes dont respond.
  4. 4. Reference