我在笔记本上安装了 Ubuntu 18.04 LTS 和 Windows（预装）。但是，我无法连接到 Wi-Fi，因为出现“未找到 Wi-Fi 适配器”消息。我在网上找到了很多解决方案，大多说连接到以太网并下载所需的驱动程序。
但是，当我尝试通过以太网连接时，它显示cable unplugged。现在，我无法通过 LAN 或 WiFi 访问互联网。
但是，在我的 Windows WiFi 和 LAN 中，两者都可以正常工作。我搜索了许多在线解决方案，但似乎都没有帮助。有人能帮助我吗？
编辑
输出lspci -knn | grep Net -A3; rfkill list
00:14.3 Network controller [0280]: Intel Corporation Device [8086:02f0]
Subsystem: Intel Corporation Device [8086:0034]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
uname -a输出：
Linux Vallabh-MI 5.0.0-23-generic #24~18.04.1-Ubuntu SMP Mon Jul 29 16:12:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
dmesg | grep iwl输出
[ 2.525688] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9560, REV=0x354
[ 7.543679] iwlwifi 0000:00:14.3: Failed to load firmware chunk!
[ 7.543682] iwlwifi 0000:00:14.3: iwlwifi transaction failed, dumping registers
[ 7.543683] iwlwifi 0000:00:14.3: iwlwifi device config registers:
[ 7.543713] iwlwifi 0000:00:14.3: 00000000: 02f08086 00100406 02800000 00800010 b6198004 00000000 00000000 00000000
[ 7.543714] iwlwifi 0000:00:14.3: 00000020: 00000000 00000000 00000000 00348086 00000000 000000c8 00000000 000001ff
[ 7.543715] iwlwifi 0000:00:14.3: iwlwifi device memory mapped registers:
[ 7.543745] iwlwifi 0000:00:14.3: 00000000: 00489004 00000040 00000000 00000000 00000000 00000000 00000000 00000000
[ 7.543747] iwlwifi 0000:00:14.3: 00000020: 00000011 0c040005 00000351 d55555d5 d55555d5 d55555d5 80008040 001f0040
[ 7.543765] iwlwifi 0000:00:14.3: Could not load the [0] uCode section
[ 7.543768] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -110
[ 7.543770] iwlwifi 0000:00:14.3: Collecting data: trigger 15 fired.
[ 7.765532] iwlwifi 0000:00:14.3: Failing on timeout while stopping DMA channel 8 [0x0bad1122]
[ 7.778763] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110
[ 12.200631] Modules linked in: cmac bnep nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel hid_multitouch hid_generic snd_hda_intel snd_hda_codec snd_hda_core crct10dif_pclmul i915 snd_hwdep crc32_pclmul snd_pcm snd_seq_midi snd_seq_midi_event nouveau ghash_clmulni_intel snd_rawmidi kvmgt vfio_mdev snd_seq mdev btusb vfio_iommu_type1 btrtl iwlmvm btbcm mxm_wmi vfio btintel aesni_intel snd_seq_device aes_x86_64 kvm ttm mac80211 snd_timer bluetooth crypto_simd irqbypass cryptd idma64 virt_dma glue_helper drm_kms_helper snd input_leds intel_cstate iwlwifi drm intel_rapl_perf i2c_algo_bit fb_sys_fops serio_raw sparse_keymap intel_wmi_thunderbolt ecdh_generic syscopyarea intel_lpss_pci processor_thermal_device sysfillrect cfg80211 soundcore sysimgblt wmi_bmof intel_soc_dts_iosf intel_lpss int3403_thermal int340x_thermal_zone mac_hid int3400_thermal acpi_tad acpi_thermal_rel```