20.10 Server WiFi часто теряет соединение

Мы установили сервер Ubuntu 20.10 с беспроводной картой Intel, WiFi очень шаткий с частыми отключениями, почти раз в минуту. Подробности следующие: Ubuntu Version:

Distributor ID: Ubuntu
Description:    Ubuntu 20.10
Release:    20.10
Codename:   groovy

Linux Kernel is:

5.8.0-43-generic

Hardware version is as follows:

00:14.3 Network controller: Intel Corporation Wireless-AC 9462

В syslog есть следующие ошибки:

Apr 28 20:49:37 wpa_supplicant[916]: wlp0s20f3: CTRL-EVENT-BEACON-LOSS
Apr 28 20:49:37 wpa_supplicant[916]: message repeated 2 times: [ wlp0s20f3: CTRL-EVENT-BEACON-LOSS ]
Apr 28 20:49:37 wpa_supplicant[916]: wlp0s20f3: CTRL-EVENT-DISCONNECTED bssid=e4:c3:2a:21:6b:49 reason=4 locally_generated=1
Apr 28 20:49:38 ntpd[1153]: Deleting interface #82 wlp0s20f3, 192.168.1.22#123, interface stats: received=1, sent=1, dropped=0, active_time=83 secs
Apr 28 20:49:38 ntpd[1153]: Deleting interface #83 wlp0s20f3, fe80::46af:28ff:fe0a:9c9f%3#123, interface stats: received=0, sent=0, dropped=0, active_time=83 secs
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: SME: Trying to authenticate with e4:c3:2a:21:6b:49 (SSID='test' freq=2412 MHz)
Apr 28 20:49:38 kernel: [ 4105.452210] wlp0s20f3: authenticate with e4:c3:2a:21:6b:49
Apr 28 20:49:38 kernel: [ 4105.457695] wlp0s20f3: send auth to e4:c3:2a:21:6b:49 (try 1/3)
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: Trying to associate with e4:c3:2a:21:6b:49 (SSID='test' freq=2412 MHz)
Apr 28 20:49:38 kernel: [ 4105.561893] wlp0s20f3: send auth to e4:c3:2a:21:6b:49 (try 2/3)
Apr 28 20:49:38 kernel: [ 4105.564522] wlp0s20f3: authenticated
Apr 28 20:49:38 kernel: [ 4105.565689] wlp0s20f3: associate with e4:c3:2a:21:6b:49 (try 1/3)
Apr 28 20:49:38 kernel: [ 4105.570818] wlp0s20f3: RX AssocResp from e4:c3:2a:21:6b:49 (capab=0x431 status=0 aid=5)
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: Associated with e4:c3:2a:21:6b:49
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Apr 28 20:49:38 kernel: [ 4105.574803] wlp0s20f3: associated
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: WPA: Key negotiation completed with e4:c3:2a:21:6b:49 [PTK=CCMP GTK=TKIP]
Apr 28 20:49:38 wpa_supplicant[916]: wlp0s20f3: CTRL-EVENT-CONNECTED - Connection to e4:c3:2a:21:6b:49 completed [id=0 id_str=]

Приведенный выше syslog появляется непрерывно почти каждую минуту.

При запуске возникает следующая ошибка, связанная с драйвером:

[    6.028328] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-56.ucode failed with error -2
[    6.032948] iwlwifi 0000:00:14.3: loaded firmware version 55.d9698065.0 QuZ-a0-hr-b0-55.ucode op_mode iwlmvm
[    6.032975] iwlwifi 0000:00:14.3: Direct firmware load for iwl-debug-yoyo.bin failed with error -2

Если кто-то сталкивался с подобными проблемами и смог их решить, пожалуйста, дайте мне знать. Мы отключили стандартный netplan и используем ifupdown+wpa_supplicant. Ура!