無線介面停止工作，netcfg 報告找不到網路

我的 Arch Linux 安裝經常出現問題：無線將工作幾分鐘，然後隨機當機。當我嘗試通過 wifi-menu 重新啟動它時，我被告知沒有任何網路。

> sudo wifi-menu
:: Scanning for networks                                                [FAILED] 
> No networks found

直接執行netcfg，我收到：

sudo netcfg wlan0-2WIRE555
:: wlan0-2WIRE555 up                  [ BUSY ] Successfully initialized wpa_supplicant
Could not set interface wlan0 flags (UP): Connection timed out
nl80211: Could not set interface 'wlan0' UP
Could not set interface wlan0 flags (UP): Connection timed out
WEXT: Could not set interface 'wlan0' UP
wlan0: Failed to initialize driver interface
> wpa_supplicant did not start, possible configuration error

的輸出lspci是：

~ > lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev ff)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)

每次發生這種情況時，我都必須重新啟動才能使網際網路正常工作。是否有一些 systemd 命令可以用來手動重新啟動它？這是我可以永久解決的問題嗎？

我沒有迅馳晶片組機器，但我確實在我的筆記型電腦上執行 Arch，並且我已經嘗試了很多無線網卡和驅動程序。

一點Google搜尋告訴我這個：

• Ubuntu 人們懷疑可能存在韌體錯誤
• Arch linux的人給個驅動參數試試。
• 可以在此處獲得迅馳的最新韌體。

看起來有些筆記型電腦有一個外部無線開關。確保它“開啟”。

引用自：https://unix.stackexchange.com/questions/71767