桌面版 Ubuntu14.04 上的 WiFi 不稳定

桌面版 Ubuntu14.04 上的 WiFi 不稳定

我在桌面上安装了 Ubuntu 14.04,现在 WiFi 连接出现问题。每次重启后,它都能正常工作,但一段时间后就会断线。有时会恢复,有时不会。一开始,我可以通过单击 WiFi 连接启动器图标并重新连接来重新启动它。但后来我搜索了互联网,找到了以下 2 个解决方法:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi

sudo -i
echo "options rtl8723be fwlps=0"  >  /etc/modprobe.d/rtl8723be.conf
modprobe -r rtl8723be
modprobe rtl8723be
exit

两者都做了,现在我无法通过单击图标重新连接,需要重新启动 PC。发现无需重新启动即可重新启动连接:

sudo service network-manager restart

以下是无线信息脚本的输出:

########## wireless info START ##########

Report from: 15 Aug 2015 15:58 EEST +0300

Booted last: 15 Aug 2015 15:49 EEST +0300

Script from: 14 Jul 2015 17:04 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

##### kernel ############################

Linux 3.16.0-45-generic #60~14.04.1-Ubuntu SMP Fri Jul 24 21:16:23 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
    Subsystem: ASUSTeK Computer Inc. P8P67 and other motherboards [1043:8432]
    Kernel driver in use: r8169

##### lsusb #############################

Bus 003 Device 002: ID 0781:5572 SanDisk Corp. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 04f3:0103 Elan Microelectronics Corp. ActiveJet K-2024 Multimedia Keyboard
Bus 004 Device 002: ID 2188:0ae1  
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

##### lsmod #############################

rtl8192cu              67741  0 
rtl_usb                18448  1 rtl8192cu
rtlwifi                64255  2 rtl_usb,rtl8192cu
rtl8192c_common        53172  1 rtl8192cu
mac80211              652777  3 rtl_usb,rtlwifi,rtl8192cu
cfg80211              498458  2 mac80211,rtlwifi
eeepc_wmi              13151  0 
asus_wmi               24094  1 eeepc_wmi
sparse_keymap          13948  1 asus_wmi
video                  20128  1 asus_wmi
wmi                    19193  1 asus_wmi

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]>  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0     Link encap:Ethernet  HWaddr <MAC 'wlan0' [IF]>  
          inet addr:192.168.1.102  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::<IP6 'wlan0' [IF]>/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6127 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5181 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4296934 (4.2 MB)  TX bytes:785909 (785.9 KB)

##### iwconfig ##########################

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"krasota"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: <MAC 'krasota' [AC1]>   
          Bit Rate=150 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=54/70  Signal level=-56 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:5   Missed beacon:0

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 wlan0
192.168.1.0     0.0.0.0         255.255.255.0   U     9      0        0 wlan0

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

    NetworkManager

Running:

root       862     1  0 15:49 ?        00:00:00 NetworkManager

##### NetworkManager info ###############

NetworkManager Tool

State: connected (global)

- Device: wlan0  [krasota] -----------------------------------------------------
  Type:              802.11 WiFi
  Driver:            rtl8192cu
  State:             connected
  Default:           yes
  HW Address:        <MAC 'wlan0' [IF]>

  Capabilities:
    Speed:           150 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    Keenetic-0134:   Infra, <MAC 'Keenetic-0134' [AC2]>, Freq 2422 MHz, Rate 54 Mb/s, Strength 87 WPA2
    Soti:            Infra, <MAC 'Soti' [AC4]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
    nexus:           Infra, <MAC 'nexus' [AC3]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WPA WPA2
    RAMSA:           Infra, <MAC 'RAMSA' [AN4]>, Freq 2432 MHz, Rate 54 Mb/s, Strength 4 WPA2
    Lanet:           Infra, <MAC 'Lanet' [AN5]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 4 WPA WPA2
    volia 30 2:      Infra, <MAC 'volia 30 2' [AN6]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 4 WEP
    mimimishka:      Infra, <MAC 'mimimishka' [AN7]>, Freq 2457 MHz, Rate 54 Mb/s, Strength 4 WPA2
    EVA BRAUN:       Infra, <MAC 'EVA BRAUN' [AN8]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 4 WPA2
    *krasota:        Infra, <MAC 'krasota' [AC1]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 60 WPA WPA2
    putinKHUYLO:     Infra, <MAC 'putinKHUYLO' [AN10]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 4 WPA WPA2

  IPv4 Settings:
    Address:         192.168.1.102
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.1.1

    DNS:             192.168.1.1

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        <MAC 'eth0' [IF]>

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/mimimishka]] (600 root)
[connection] id=mimimishka | type=802-11-wireless
[802-11-wireless] ssid=mimimishka | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/krasota]] (600 root)
[connection] id=krasota | type=802-11-wireless
[802-11-wireless] ssid=krasota | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: Europe/Kiev (based on set time zone)

country UA:
    (2400 - 2483 @ 40), (N/A, 20), NO-OUTDOOR
    (5150 - 5350 @ 40), (N/A, 20), NO-OUTDOOR
    (57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR

##### iwlist channels ###################

eth0      no frequency information.

lo        no frequency information.

wlan0     11 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Current Frequency:2.412 GHz (Channel 1)

##### iwlist scan #######################

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

Channel occupancy:

      1   APs on   Frequency:2.412 GHz (Channel 1)
      1   APs on   Frequency:2.422 GHz (Channel 3)
      1   APs on   Frequency:2.437 GHz (Channel 6)
      1   APs on   Frequency:2.452 GHz (Channel 9)

wlan0     Scan completed :
          Cell 01 - Address: <MAC 'krasota' [AC1]>
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=52/70  Signal level=-58 dBm  
                    Encryption key:on
                    ESSID:"krasota"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000002b8d0fe19
                    Extra: Last beacon: 84ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
          Cell 02 - Address: <MAC 'Keenetic-0134' [AC2]>
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"Keenetic-0134"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=00000649a2dad2ce
                    Extra: Last beacon: 84ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 03 - Address: <MAC 'nexus' [AC3]>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=12/70  Signal level=-98 dBm  
                    Encryption key:on
                    ESSID:"nexus"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000001a689e7a006
                    Extra: Last beacon: 84ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 04 - Address: <MAC 'Soti' [AC4]>
                    Channel:9
                    Frequency:2.452 GHz (Channel 9)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"Soti"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000185dbcfac
                    Extra: Last beacon: 84ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK

##### module infos ######################

[rtl8192cu]
filename:       /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192cu/rtl8192cu.ko
firmware:       rtlwifi/rtl8192cufw_TMSC.bin
firmware:       rtlwifi/rtl8192cufw_B.bin
firmware:       rtlwifi/rtl8192cufw_A.bin
firmware:       rtlwifi/rtl8192cufw.bin
description:    Realtek 8192C/8188C 802.11n USB wireless
license:        GPL
author:         Larry Finger    <[email protected]>
author:         Ziv Huang   <[email protected]>
author:         Georgia     <[email protected]>
srcversion:     93FD064658D2AD5B6991075
depends:        rtlwifi,rtl8192c-common,rtl_usb,mac80211
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512
parm:           swenc:Set to 1 for software crypto (default 0)
 (bool)
parm:           debug:Set debug level (0-5) (default 0) (int)

[rtl_usb]
filename:       /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl_usb.ko
description:    USB basic driver for rtlwifi
license:        GPL
author:         Larry Finger    <[email protected]>
author:         Realtek WlanFAE <[email protected]>
author:         lizhaoming  <[email protected]>
srcversion:     94CFED30E3318E18EC4B740
depends:        rtlwifi,mac80211
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512

[rtlwifi]
filename:       /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description:    Realtek 802.11n PCI wireless core
license:        GPL
author:         Larry Finger    <[email protected]>
author:         Realtek WlanFAE <[email protected]>
author:         lizhaoming  <[email protected]>
srcversion:     8362106E96F806A9DBAE565
depends:        mac80211,cfg80211
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512

[rtl8192c_common]
filename:       /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description:    Realtek 8192C/8188C 802.11n PCI wireless
license:        GPL
author:         Larry Finger    <[email protected]>
author:         Ziv Huang   <[email protected]>
author:         Georgia     <[email protected]>
author:         Realtek WlanFAE <[email protected]>
author:         lizhaoming  <[email protected]>
srcversion:     A279C50E29ED7F277EAF738
depends:        
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512

[mac80211]
filename:       /lib/modules/3.16.0-45-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     315DCE1E2614AE1F38132D3
depends:        cfg80211
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/3.16.0-45-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     D48679749A6B8B822E391CA
depends:        
intree:         Y
vermagic:       3.16.0-45-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo:   sha512
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[rtl8192cu]
debug: 0
swenc: N

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

lp
rtc

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
options iwlwifi 11n_disable=1

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

[/etc/modprobe.d/modesetting.conf]
options cirrus modeset=1
options mgag200 modeset=1

[/etc/modprobe.d/rtl8723be.conf]
options rtl8723be fwlps=0

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# USB device 0x:0x (rtl8192cu)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[   20.635259] rtl8192cu: MAC auto ON okay!
[   20.668023] rtl8192cu: Tx queue select: 0x05
[   21.081076] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   22.700664] wlan0: authenticate with <MAC 'mimimishka' [AN7]>
[   22.724773] wlan0: send auth to <MAC 'mimimishka' [AN7]> (try 1/3)
[   22.726614] wlan0: authenticated
[   22.728123] wlan0: associate with <MAC 'mimimishka' [AN7]> (try 1/3)
[   22.740820] wlan0: RX AssocResp from <MAC 'mimimishka' [AN7]> (capab=0x411 status=0 aid=1)
[   22.740880] wlan0: associated
[   22.740888] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   27.074978] wlan0: deauthenticated from <MAC 'mimimishka' [AN7]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[   27.094197] wlan0: authenticate with <MAC 'mimimishka' [AN7]>
[   27.106253] wlan0: send auth to <MAC 'mimimishka' [AN7]> (try 1/3)
[   27.107837] wlan0: authenticated
[   27.109691] wlan0: associate with <MAC 'mimimishka' [AN7]> (try 1/3)
[   27.123577] wlan0: RX AssocResp from <MAC 'mimimishka' [AN7]> (capab=0x411 status=0 aid=1)
[   27.123643] wlan0: associated
[   31.274826] wlan0: deauthenticated from <MAC 'mimimishka' [AN7]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[   38.238369] wlan0: authenticate with <MAC 'krasota' [AC1]>
[   38.250536] wlan0: send auth to <MAC 'krasota' [AC1]> (try 1/3)
[   38.253479] wlan0: authenticated
[   38.255457] wlan0: associate with <MAC 'krasota' [AC1]> (try 1/3)
[   38.274106] wlan0: RX AssocResp from <MAC 'krasota' [AC1]> (capab=0x431 status=0 aid=3)
[   38.274165] wlan0: associated

########## wireless info END ############

请帮忙。

答案1

你做错了一切。你尝试配置与无线适配器完全无关的驱动程序。

您需要通过这种方式安装正确的驱动程序。

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtl8192cu-dkms linux-firmware

如果你没有破坏其他任何东西,你的 USB 加密狗在之后应该可以更好地工作重启

删除你创建的配置文件也是有意义的

sudo rm /etc/modprobe.d/iwlwifi.conf
sudo rm /etc/modprobe.d/rtl8723be.conf

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