Имею ноутбук Xiaomi Mi Notebook Air 13.3’ core i5 8250U. На борту Xubuntu 18.04.4 LTS (5.3.0-59-generic).
С случайной периодичностью пропадает связь с беспроводной сетью. При этом иногда через несколько секунд связь восстанавливается, иногда нужно руками переподключиться. При этом судя по иконке wi-fi связь не пропадает.
cat /var/syslog
Jun 26 17:23:41 nobody kernel: [10067.015987] wlp2s0: Connection to AP 5c:d9:98:fe:34:b0 lost
Jun 26 17:20:54 nobody rtkit-daemon[2766]: message repeated 3 times: [ Supervising 9 threads of 6 processes of 1 users.]
Jun 26 17:23:41 nobody wpa_supplicant[1231]: wlp2s0: CTRL-EVENT-DISCONNECTED bssid=5c:d9:98:fe:34:b0 reason=4 locally_generated=1
Jun 26 17:23:41 nobody NetworkManager[1229]: <warn> [1593181421.2529] sup-iface[0x55a4b9b98a40,wlp2s0]: connection disconnected (reason -4)
Jun 26 17:23:41 nobody NetworkManager[1229]: <info> [1593181421.2578] device (wlp2s0): supplicant interface state: completed -> disconnected
Jun 26 17:23:41 nobody NetworkManager[1229]: <info> [1593181421.3587] device (wlp2s0): supplicant interface state: disconnected -> scanning
Jun 26 17:23:49 nobody wpa_supplicant[1231]: wlp2s0: SME: Trying to authenticate with 5c:d9:98:fe:34:b0 (SSID='my-wi-fi-net' freq=2422 MHz)
Jun 26 17:23:49 nobody kernel: [10075.638442] wlp2s0: authenticate with 5c:d9:98:fe:34:b0
Jun 26 17:23:49 nobody kernel: [10075.645062] wlp2s0: send auth to 5c:d9:98:fe:34:b0 (try 1/3)
Jun 26 17:23:49 nobody NetworkManager[1229]: <info> [1593181429.8226] device (wlp2s0): supplicant interface state: scanning -> authenticating
Jun 26 17:23:49 nobody wpa_supplicant[1231]: wlp2s0: Trying to associate with 5c:d9:98:fe:34:b0 (SSID='my-wi-fi-net' freq=2422 MHz)
Jun 26 17:23:49 nobody kernel: [10075.649398] wlp2s0: authenticated
Jun 26 17:23:49 nobody kernel: [10075.650278] wlp2s0: associate with 5c:d9:98:fe:34:b0 (try 1/3)
Jun 26 17:23:49 nobody wpa_supplicant[1231]: wlp2s0: Associated with 5c:d9:98:fe:34:b0
Jun 26 17:23:49 nobody kernel: [10075.654336] wlp2s0: RX AssocResp from 5c:d9:98:fe:34:b0 (capab=0x411 status=0 aid=1)
Jun 26 17:23:49 nobody kernel: [10075.657054] wlp2s0: associated
Jun 26 17:23:49 nobody wpa_supplicant[1231]: wlp2s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Jun 26 17:23:49 nobody NetworkManager[1229]: <info> [1593181429.8390] device (wlp2s0): supplicant interface state: authenticating -> associating
Jun 26 17:23:49 nobody NetworkManager[1229]: <info> [1593181429.8409] device (wlp2s0): supplicant interface state: associating -> associated
Jun 26 17:23:50 nobody NetworkManager[1229]: <info> [1593181430.0527] device (wlp2s0): supplicant interface state: associated -> 4-way handshake
Jun 26 17:23:50 nobody wpa_supplicant[1231]: wlp2s0: WPA: Key negotiation completed with 5c:d9:98:fe:34:b0 [PTK=CCMP GTK=TKIP]
Jun 26 17:23:50 nobody wpa_supplicant[1231]: wlp2s0: CTRL-EVENT-CONNECTED - Connection to 5c:d9:98:fe:34:b0 completed [id=0 id_str=]
Jun 26 17:23:50 nobody wpa_supplicant[1231]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-58 noise=9999 txrate=1000
Jun 26 17:23:50 nobody NetworkManager[1229]: <info> [1593181430.0628] device (wlp2s0): supplicant interface state: 4-way handshake -> completed
dmesg -T
[Пт июн 26 17:23:41 2020] wlp2s0: Connection to AP 5c:d9:98:fe:34:b0 lost
[Пт июн 26 17:23:49 2020] wlp2s0: authenticate with 5c:d9:98:fe:34:b0
[Пт июн 26 17:23:49 2020] wlp2s0: send auth to 5c:d9:98:fe:34:b0 (try 1/3)
[Пт июн 26 17:23:49 2020] wlp2s0: authenticated
[Пт июн 26 17:23:49 2020] wlp2s0: associate with 5c:d9:98:fe:34:b0 (try 1/3)
[Пт июн 26 17:23:49 2020] wlp2s0: RX AssocResp from 5c:d9:98:fe:34:b0 (capab=0x411 status=0 aid=1)
[Пт июн 26 17:23:49 2020] wlp2s0: associated
Другие беспроводные устройства не испытывают проблем с коннектом. Точку доступа на всякий случай заменить пробовал.
В момент проблемы с точки зрения сети свой интерфейс доступен, до ближайшего соседа уже не достучаться. Помогите продебажить проблему.
