我的 wifi 出现了问题，首先是无法访问网站。我尝试找到驱动程序，并在https://www.intel.de/content/www/de/de/support/articles/000005511/network-and-io/wireless-networking.html适用于英特尔® 双频无线 AC 8260。我将文件复制iwlwifi-8000C-13.ucode到/lib/firmware/并重新启动系统。重新启动后，我根本无法连接到 wifi。输入正确的密码后，它不再接受。我目前已使用 LAN 电缆连接。我该怎么做才能连接 wifi？
Output of sudo lshw -C network
*-network
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: 3a
serial: e4:b3:18:e1:e2:22
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.3.0-26-generic firmware=36.77d01142.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:130 memory:f1000000-f1001fff
*-network
description: Ethernet interface
product: Ethernet Connection I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 21
serial: c8:5b:76:32:3b:7c
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.13-3 ip=192.168.0.178 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:127 memory:f1200000-f121ffff
*-network DISABLED
description: Ethernet interface
physical id: 3
bus info: usb@1:2
logical name: wwp0s20f0u2i12
serial: 96:9e:18:8b:b8:44
capabilities: ethernet physical
configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes
lspci -knn | grep Net -A3; rfkill list
04:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
Subsystem: Intel Corporation Wireless 8260 [8086:1130]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
1: tpacpi_wwan_sw: Wireless WAN
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
dmesg | grep iwl
[ 14.802650] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002)
[ 14.844074] iwlwifi 0000:04:00.0: Found debug destination: EXTERNAL_DRAM
[ 14.844078] iwlwifi 0000:04:00.0: Found debug configuration: 0
[ 14.844887] iwlwifi 0000:04:00.0: loaded firmware version 36.77d01142.0 op_mode iwlmvm
[ 14.957558] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[ 14.966033] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 14.966669] iwlwifi 0000:04:00.0: Allocated 0x00400000 bytes for firmware monitor.
[ 15.049213] iwlwifi 0000:04:00.0: base HW address: e4:b3:18:e1:e2:22
[ 15.123888] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 15.534768] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
[ 17.625953] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 17.774458] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 17.859110] iwlwifi 0000:04:00.0: FW already configured (0) - re-configuring
更新
因此，wifi 可以再次使用，但仍然无法访问网站。
这是我尝试通过 wifi 访问 askubuntu 帖子时的截图
如果您需要任何其他命令输出，请告诉我谢谢