Не найден адаптер Wi-Fi Ubuntu 18.04.2 Dell 3530

В настройках WiFi отображается сообщение «Адаптер Wi-Fi не найден». Я не могу подключиться или посмотреть какую-либо сеть WiFi.

$ uname -r
4.18.0-25-generic

$ nmcli device status
DEVICE  TYPE      STATE      CONNECTION         
eno2    ethernet  connected  Wired connection 1
lo      loopback  unmanaged  --     

$ lspci | grep Wireless
00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10)

$ dmesg | grep iwl
[   80.306544] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[   80.325892] iwlwifi 0000:00:14.3: loaded firmware version 38.c0e03d94.0 op_mode iwlmvm
[   80.374182] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9560, REV=0x318
[   81.408054] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x3, CPU2 Status: 0x240f
[   81.408057] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -110
[   81.420104] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110
[ 1326.205714] iwlwifi 0000:00:14.3: loaded firmware version 38.c0e03d94.0 op_mode iwlmvm
[ 1326.218447] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9560, REV=0x318
[ 1327.247770] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x3, CPU2 Status: 0x240f
[ 1327.247780] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -110
[ 1327.260590] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110

Это свежая установка. Я также сделал apt-update и apt-upgrade.

$ rfkill list all
1: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: dell-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no

modprobe iwlwifi не возвращает выходных данных.