J'ai un périphérique USB wifi TL-WN821N qui fonctionnait bien (m'a donné une connexion) lorsque j'installais Ubuntu sur mon PC. Il a téléchargé toutes les mises à jour et ce qui ne l'est pas et a fait installer le système d'exploitation.
J'ai même ouvert le terminal après l'installation pour voir si ma connexion fonctionne en utilisant la commande ping. Et j'ai fait.
Maintenant, lorsque j'ouvre Firefox et que je vais sur une page Web, il chargera la page Web et après que la connexion aura disparu, il s'affichera toujours comme si je suis connecté à Internet dans l'indicateur d'état WIFI mais aucune autre page ne peut être ouverte et le ping La commande ne fonctionne plus non plus.
Quel pourrait être le cas ici?
Je tiens à dire que j'ai maintenant l'habitude d'aider le Web. Utilisation de ndisgtk et ajout de certains fichiers à/etc/modprobe
Mon installation Ubuntu ne voit même plus que ce périphérique USB est connecté à mon ordinateur. J'ai annulé tous les changements et il ne verra même pas encore l'appareil. J'ai utilisé lusb ou quoi que la commande était et lshw aussi pour le voir. Rien n'est apparu.
Alors, que puis-je faire maintenant à ce stade? Comment faire pour que mon ordinateur détecte au moins l'appareil.
Info avec le script wifi:
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 13.10
Release: 13.10
Codename: saucy
##### kernel #####
Linux kaspar-All-Series 3.11.0-19-generic #33-Ubuntu SMP Tue Mar 11 18:48:34 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
##### lspci #####
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
Subsystem: ASUSTeK Computer Inc. Device [1043:8554]
Kernel driver in use: r8169
##### lsusb #####
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 003 Device 003: ID 1532:000d Razer USA, Ltd
Bus 003 Device 002: ID 046d:c326 Logitech, Inc.
Bus 003 Device 005: ID 0781:5406 SanDisk Corp. Cruzer Micro U3
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA Card Info #####
##### rfkill #####
##### iw reg get #####
country 00:
(2402 - 2472 @ 40), (6, 20)
(2457 - 2482 @ 40), (6, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (6, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 80), (6, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 80), (6, 20), PASSIVE-SCAN, NO-IBSS
(57240 - 63720 @ 2160), (N/A, 0)
##### interfaces #####
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
##### iwconfig #####
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
##### resolv.conf #####
##### nm-tool #####
NetworkManager Tool
State: disconnected
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC address removed>
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
##### iwlist #####
##### iwlist channel #####
##### lsmod #####
##### modinfo #####
##### modules #####
lp
rtc
##### blacklist #####
[/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/bumblebee.conf]
blacklist nouveau
blacklist nvidia
blacklist nvidia-current
blacklist nvidia-current-updates
blacklist nvidia-304
blacklist nvidia-304-updates
blacklist nvidia-experimental-304
blacklist nvidia-310
blacklist nvidia-310-updates
blacklist nvidia-experimental-310
blacklist nvidia-313
blacklist nvidia-313-updates
blacklist nvidia-experimental-313
blacklist nvidia-319
blacklist nvidia-319-updates
blacklist nvidia-experimental-319
blacklist nvidia-325
blacklist nvidia-325-updates
blacklist nvidia-experimental-325
blacklist nvidia-331
blacklist nvidia-331-updates
blacklist nvidia-experimental-331
##### udev rules #####
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# USB device 0x:0x (rtl8192cu)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #####
########## wireless info END ############
May 20 13:01:59 kaspar-All-Series anacron[847]: Job `cron.daily' terminated
May 20 13:02:00 kaspar-All-Series dbus[618]: [system] Activating service name='com.ubuntu.ScreenResolution.Mechanism' (using servicehelper)
May 20 13:02:00 kaspar-All-Series dbus[618]: [system] Successfully activated service 'com.ubuntu.ScreenResolution.Mechanism'
May 20 13:04:27 kaspar-All-Series dbus[618]: [system] Activating service name='org.freedesktop.hostname1' (using servicehelper)
May 20 13:04:27 kaspar-All-Series dbus[618]: [system] Successfully activated service 'org.freedesktop.hostname1'
May 20 13:04:42 kaspar-All-Series AptDaemon: INFO: UpdateCache() was called
May 20 13:04:42 kaspar-All-Series AptDaemon.Trans: INFO: Queuing transaction /org/debian/apt/transaction/653acc3280a44adbbb0fb39b503c017c
May 20 13:04:42 kaspar-All-Series AptDaemon.Worker: INFO: Simulating trans: /org/debian/apt/transaction/653acc3280a44adbbb0fb39b503c017c
May 20 13:04:42 kaspar-All-Series AptDaemon.Worker: INFO: Processing transaction /org/debian/apt/transaction/653acc3280a44adbbb0fb39b503c017c
May 20 13:04:43 kaspar-All-Series AptDaemon.Worker: INFO: Updating cache
May 20 13:05:02 kaspar-All-Series AptDaemon.Worker: INFO: Finished transaction /org/debian/apt/transaction/653acc3280a44adbbb0fb39b503c017c
May 20 13:05:32 kaspar-All-Series anacron[847]: Job `cron.weekly' started
May 20 13:05:32 kaspar-All-Series anacron[3813]: Updated timestamp for job `cron.weekly' to 2014-05-20
May 20 13:05:45 kaspar-All-Series AptDaemon: INFO: CommitPackages() was called: dbus.Array([dbus.String('')], signature=dbus.Signature('s')), dbus.Array([dbus.String('')], signature=dbus.Signature('s')), dbus.Array([dbus.String('')], signature=dbus.Signature('s')), dbus.Array([dbus.String('')], signature=dbus.Signature('s')), dbus.Array([dbus.String('account-plugin-aim'), dbus.String('account-plugin-Jabber'), dbus.String('account-plugin-salut'), dbus.String('account-plugin-yahoo'), dbus.String('app-install-data'), dbus.String('bash'), dbus.String('cups-browsed'), dbus.String('cups-filters'), dbus.String('cups-filters-core-drivers'), dbus.String('dpkg'), dbus.String('empathy'), dbus.String('empathy-common'), dbus.String('firefox'), dbus.String('firefox-locale-en'), dbus.String('firefox-locale-et'), dbus.String('flashplugin-installer'), dbus.String('gdb'), dbus.String('gettext'), dbus.String('gettext-base'), dbus.String('ghostscript'), dbus.String('ghostscript-x'), dbus.String('gir1.2-freedesktop'), dbus.String('gir1.2-glib-2.0'), dbus.String('gir1.2-gudev-1.0'), dbus.String('gir1.2-rb-3.0'), dbus.String('gnome-calculator'), dbus.String('gnome-control-center-shared-data'), dbus.String('icedtea-7-jre-jamvm'), dbus.String('ifupdown'), dbus.String('initramfs-tools'), dbus.String('initramfs-tools-bin'), dbus.String('iputils-arping'), dbus.String('iputils-ping'), dbus.String('iputils-tracepath'), dbus.String('libasprintf-dev'), dbus.String('libasprintf0c2'), dbus.String('libavcodec54'), dbus.String('libavformat54'), dbus.String('libavutil52'), dbus.String('libcupsfilters1'), dbus.String('libdpkg-Perl'), dbus.String('libdrm-intel1'), dbus.String('libdrm-intel1:i386'), dbus.String('libdrm-nouveau2'), dbus.String('libdrm-nouveau2:i386'), dbus.String('libdrm-radeon1'), dbus.String('libdrm-radeon1:i386'), dbus.String('libdrm2'), dbus.String('libdrm2:i386'), dbus.String('libegl1-mesa'), dbus.String('libegl1-mesa-drivers'), dbus.String('libelf1'), dbus.String('libelf1:i386'), dbus.String('libfontembed1'), dbus.String('libfreetype6'), dbus.String('libfreetype6:i386'), dbus.String('libgail-common'), dbus.String('libgail18'), dbus.String('libgbm1'), dbus.String('libgettextpo-dev'), dbus.String('libgettextpo0'), dbus.String('libgexiv2-2'), dbus.String('libgirepository-1.0-1'), dbus.String('libgl1-mesa-dri'), dbus.String('libgl1-mesa-dri:i386'), dbus.String('libgl1-mesa-glx'), dbus.String('libgl1-mesa-glx:i386'), dbus.String('libglamor0'), dbus.String('libglapi-mesa'), dbus.String('libglapi-mesa:i386'), dbus.String('libgles2-mesa'), dbus.String('libgnome-control-center1'), dbus.String('libgs9'), dbus.String('libgs9-common'), dbus.String('libgtk2.0-0'), dbus.String('libgtk2.0-bin'), dbus.String('libgtk2.0-common'), dbus.String('libgudev-1.0-0'), dbus.String('libido3-0.1-0'), dbus.String('libjbig0'), dbus.String('libjbig0:i386'), dbus.String('liblightdm-gobject-1-0'), dbus.String('libmysqlclient18:i386'), dbus.String('libopenvg1-mesa'), dbus.String('libpam-systemd'), dbus.String('librhythmbox-core8'), dbus.String('libsdl1.2debian'), dbus.String('libselinux1'), dbus.String('libselinux1:i386'), dbus.String('libsmbclient'), dbus.String('libssl1.0.0'), dbus.String('libssl1.0.0:i386'), dbus.String('libswscale2'), dbus.String('libsystemd-daemon0'), dbus.String('libsystemd-journal0'), dbus.String('libsystemd-login0'), dbus.String('libtiff5'), dbus.String('libtiff5:i386'), dbus.String('libudev1'), dbus.String('libudev1:i386'), dbus.String('libunity-core-6.0-9'), dbus.String('libvlc5'), dbus.String('libvlccore7'), dbus.String('libwayland-egl1-mesa'), dbus.String('libwbclient0'), dbus.String('libxatracker2'), dbus.String('libxfont1'), dbus.String('libxml2'), dbus.String('libxml2:i386'), dbus.String('lightdm'), dbus.String('linux-firmware'), dbus.String('linux-generic'), dbus.String('linux-headers-3.13.0-24'), dbus.String('linux-headers-3.13.0-24-generic'), dbus.String('linux-headers-generic'), dbus.String('linux-image-3.13.0-24-generic'), dbus.String('linux-image-extra-3.13.0-24-generic'), dbus.String('linux-image-generic'), dbus.String('linux-libc-dev'), dbus.String('ltrace'), dbus.String('mcp-account-manager-uoa'), dbus.String('mysql-common'), dbus.String('nautilus-sendto-empathy'), dbus.String('nvidia-337'), dbus.String('nvidia-settings'), dbus.String('openjdk-7-jre'), dbus.String('openjdk-7-jre-headless'), dbus.String('openssl'), dbus.String('patch'), dbus.String('python-cupshelpers'), dbus.String('python-libxml2'), dbus.String('python-samba'), dbus.String('python3-software-properties'), dbus.String('python3-update-manager'), dbus.String('rhythmbox'), dbus.String('rhythmbox-data'), dbus.String('rhythmbox-mozilla'), dbus.String('rhythmbox-plugin-cdrecorder'), dbus.String('rhythmbox-plugin-magnatune'), dbus.String('rhythmbox-plugin-zeitgeist'), dbus.String('rhythmbox-plugins'), dbus.String('rsync'), dbus.String('samba-common'), dbus.String('samba-common-bin'), dbus.String('samba-libs'), dbus.String('smbclient'), dbus.String('software-center'), dbus.String('software-properties-common'), dbus.String('software-properties-gtk'), dbus.String('Steam-launcher'), dbus.String('system-config-printer-common'), dbus.String('system-config-printer-gnome'), dbus.String('system-config-printer-udev'), dbus.String('systemd-services'), dbus.String('Thunderbird'), dbus.String('Thunderbird-gnome-support'), dbus.String('Thunderbird-locale-en'), dbus.String('Thunderbird-locale-en-gb'), dbus.String('Thunderbird-locale-en-us'), dbus.String('Thunderbird-locale-et'), dbus.String('tzdata'), dbus.String('tzdata-Java'), dbus.String('udev'), dbus.String('unity'), dbus.String('unity-greeter'), dbus.String('unity-services'), dbus.String('update-manager'), dbus.String('update-manager-core'), dbus.String('vlc'), dbus.String('vlc-data'), dbus.String('vlc-nox'), dbus.String('vlc-plugin-notify'), dbus.String('vlc-plugin-Pulse'), dbus.String('xserver-xorg-video-ATI'), dbus.String('xserver-xorg-video-glamoregl'), dbus.String('xserver-xorg-video-intel'), dbus.String('xserver-xorg-video-nouveau'), dbus.String('xserver-xorg-video-radeon')], signature=dbus.Signature('s')), dbus.Array([dbus.String('')], signature=dbus.Signature('s'))
May 20 13:05:45 kaspar-All-Series AptDaemon.Trans: INFO: Queuing transaction /org/debian/apt/transaction/cc1925d70e1446e787796b1de148b4f5
May 20 13:05:45 kaspar-All-Series AptDaemon.Worker: INFO: Simulating trans: /org/debian/apt/transaction/cc1925d70e1446e787796b1de148b4f5
May 20 13:05:45 kaspar-All-Series AptDaemon.Worker: INFO: Committing packages: dbus.Array([], signature=dbus.Signature('s')), dbus.Array([], signature=dbus.Signature('s')), dbus.Array([], signature=dbus.Signature('s')), dbus.Array([], signature=dbus.Signature('s')), dbus.Array([dbus.String('account-plugin-aim'), dbus.String('account-plugin-Jabber'), dbus.String('account-plugin-salut'), dbus.String('account-plugin-yahoo'), dbus.String('app-install-data'), dbus.String('bash'), dbus.String('cups-browsed'), dbus.String('cups-filters'), dbus.String('cups-filters-core-drivers'), dbus.String('dpkg'), dbus.String('empathy'), dbus.String('empathy-common'), dbus.String('firefox'), dbus.String('firefox-locale-en'), dbus.String('firefox-locale-et'), dbus.String('flashplugin-installer'), dbus.String('gdb'), dbus.String('gettext'), dbus.String('gettext-base'), dbus.String('ghostscript'), dbus.String('ghostscript-x'), dbus.String('gir1.2-freedesktop'), dbus.String('gir1.2-glib-2.0'), dbus.String('gir1.2-gudev-1.0'), dbus.String('gir1.2-rb-3.0'), dbus.String('gnome-calculator'), dbus.String('gnome-control-center-shared-data'), dbus.String('icedtea-7-jre-jamvm'), dbus.String('ifupdown'), dbus.String('initramfs-tools'), dbus.String('initramfs-tools-bin'), dbus.String('iputils-arping'), dbus.String('iputils-ping'), dbus.String('iputils-tracepath'), dbus.String('libasprintf-dev'), dbus.String('libasprintf0c2'), dbus.String('libavcodec54'), dbus.String('libavformat54'), dbus.String('libavutil52'), dbus.String('libcupsfilters1'), dbus.String('libdpkg-Perl'), dbus.String('libdrm-intel1'), dbus.String('libdrm-intel1:i386'), dbus.String('libdrm-nouveau2'), dbus.String('libdrm-nouveau2:i386'), dbus.String('libdrm-radeon1'), dbus.String('libdrm-radeon1:i386'), dbus.String('libdrm2'), dbus.String('libdrm2:i386'), dbus.String('libegl1-mesa'), dbus.String('libegl1-mesa-drivers'), dbus.String('libelf1'), dbus.String('libelf1:i386'), dbus.String('libfontembed1'), dbus.String('libfreetype6'), dbus.String('libfreetype6:i386'), dbus.String('libgail-common'), dbus.String('libgail18'), dbus.String('libgbm1'), dbus.String('libgettextpo-dev'), dbus.String('libgettextpo0'), dbus.String('libgexiv2-2'), dbus.String('libgirepository-1.0-1'), dbus.String('libgl1-mesa-dri'), dbus.String('libgl1-mesa-dri:i386'), dbus.String('libgl1-mesa-glx'), dbus.String('libgl1-mesa-glx:i386'), dbus.String('libglamor0'), dbus.String('libglapi-mesa'), dbus.String('libglapi-mesa:i386'), dbus.String('libgles2-mesa'), dbus.String('libgnome-control-center1'), dbus.String('libgs9'), dbus.String('libgs9-common'), dbus.String('libgtk2.0-0'), dbus.String('libgtk2.0-bin'), dbus.String('libgtk2.0-common'), dbus.String('libgudev-1.0-0'), dbus.String('libido3-0.1-0'), dbus.String('libjbig0'), dbus.String('libjbig0:i386'), dbus.String('liblightdm-gobject-1-0'), dbus.String('libmysqlclient18:i386'), dbus.String('libopenvg1-mesa'), dbus.String('libpam-systemd'), dbus.String('librhythmbox-core8'), dbus.String('libsdl1.2debian'), dbus.String('libselinux1'), dbus.String('libselinux1:i386'), dbus.String('libsmbclient'), dbus.String('libssl1.0.0'), dbus.String('libssl1.0.0:i386'), dbus.String('libswscale2'), dbus.String('libsystemd-daemon0'), dbus.String('libsystemd-journal0'), dbus.String('libsystemd-login0'), dbus.String('libtiff5'), dbus.String('libtiff5:i386'), dbus.String('libudev1'), dbus.String('libudev1:i386'), dbus.String('libunity-core-6.0-9'), dbus.String('libvlc5'), dbus.String('libvlccore7'), dbus.String('libwayland-egl1-mesa'), dbus.String('libwbclient0'), dbus.String('libxatracker2'), dbus.String('libxfont1'), dbus.String('libxml2'), dbus.String('libxml2:i386'), dbus.String('lightdm'), dbus.String('linux-firmware'), dbus.String('linux-generic'), dbus.String('linux-headers-3.13.0-24'), dbus.String('linux-headers-3.13.0-24-generic'), dbus.String('linux-headers-generic'), dbus.String('linux-image-3.13.0-24-generic'), dbus.String('linux-image-extra-3.13.0-24-generic'), dbus.String('linux-image-generic'), dbus.String('linux-libc-dev'), dbus.String('ltrace'), dbus.String('mcp-account-manager-uoa'), dbus.String('mysql-common'), dbus.String('nautilus-sendto-empathy'), dbus.String('nvidia-337'), dbus.String('nvidia-settings'), dbus.String('openjdk-7-jre'), dbus.String('openjdk-7-jre-headless'), dbus.String('openssl'), dbus.String('patch'), dbus.String('python-cupshelpers'), dbus.String('python-libxml2'), dbus.String('python-samba'), dbus.String('python3-software-properties'), dbus.String('python3-update-manager'), dbus.String('rhythmbox'), dbus.String('rhythmbox-data'), dbus.String('rhythmbox-mozilla'), dbus.String('rhythmbox-plugin-cdrecorder'), dbus.String('rhythmbox-plugin-magnatune'), dbus.String('rhythmbox-plugin-zeitgeist'), dbus.String('rhythmbox-plugins'), dbus.String('rsync'), dbus.String('samba-common'), dbus.String('samba-common-bin'), dbus.String('samba-libs'), dbus.String('smbclient'), dbus.String('software-center'), dbus.String('software-properties-common'), dbus.String('software-properties-gtk'), dbus.String('Steam-launcher'), dbus.String('system-config-printer-common'), dbus.String('system-config-printer-gnome'), dbus.String('system-config-printer-udev'), dbus.String('systemd-services'), dbus.String('Thunderbird'), dbus.String('Thunderbird-gnome-support'), dbus.String('Thunderbird-locale-en'), dbus.String('Thunderbird-locale-en-gb'), dbus.String('Thunderbird-locale-en-us'), dbus.String('Thunderbird-locale-et'), dbus.String('tzdata'), dbus.String('tzdata-Java'), dbus.String('udev'), dbus.String('unity'), dbus.String('unity-greeter'), dbus.String('unity-services'), dbus.String('update-manager'), dbus.String('update-manager-core'), dbus.String('vlc'), dbus.String('vlc-data'), dbus.String('vlc-nox'), dbus.String('vlc-plugin-notify'), dbus.String('vlc-plugin-Pulse'), dbus.String('xserver-xorg-video-ATI'), dbus.String('xserver-xorg-video-glamoregl'), dbus.String('xserver-xorg-video-intel'), dbus.String('xserver-xorg-video-nouveau'), dbus.String('xserver-xorg-video-radeon')], signature=dbus.Signature('s')), dbus.Array([], signature=dbus.Signature('s'))
May 20 13:05:46 kaspar-All-Series AptDaemon.Worker: INFO: Processing transaction /org/debian/apt/transaction/cc1925d70e1446e787796b1de148b4f5
May 20 13:06:17 kaspar-All-Series anacron[847]: Job `cron.weekly' terminated
May 20 13:06:41 kaspar-All-Series AptDaemon.Trans: INFO: Cancelling transaction /org/debian/apt/transaction/cc1925d70e1446e787796b1de148b4f5
May 20 13:06:42 kaspar-All-Series AptDaemon.Worker: INFO: Finished transaction /org/debian/apt/transaction/cc1925d70e1446e787796b1de148b4f5
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> (wlan0): device state change: activated -> unavailable (reason 'none') [100 20 0]
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> (wlan0): deactivating device (reason 'none') [0]
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 1172
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Withdrawing address record for fe80::a2f3:c1ff:fe1c:a4a8 on wlan0.
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::a2f3:c1ff:fe1c:a4a8.
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Interface wlan0.IPv6 no longer relevant for mDNS.
May 20 13:06:51 kaspar-All-Series kernel: [ 691.260807] wlan0: deauthenticating from 00:0e:2e:6e:f4:ca by local choice (reason=3)
May 20 13:06:50 kaspar-All-Series wpa_supplicant[1051]: message repeated 7 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ]
May 20 13:06:51 kaspar-All-Series wpa_supplicant[1051]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:0e:2e:6e:f4:ca reason=3 locally_generated=1
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Withdrawing address record for 192.168.2.103 on wlan0.
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.2.103.
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <warn> DNS: plugin dnsmasq update failed
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> Removing DNS information from /sbin/resolvconf
May 20 13:06:51 kaspar-All-Series dnsmasq[1490]: setting upstream servers from DBus
May 20 13:06:51 kaspar-All-Series kernel: [ 691.274986] cfg80211: Calling CRDA to update world regulatory domain
May 20 13:06:51 kaspar-All-Series avahi-daemon[733]: Interface wlan0.IPv4 no longer relevant for mDNS.
May 20 13:06:51 kaspar-All-Series whoopsie[1041]: offline
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280262] cfg80211: World regulatory domain updated:
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280266] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280268] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280270] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280272] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280273] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 20 13:06:51 kaspar-All-Series kernel: [ 691.280275] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> NetworkManager state is now DISCONNECTED
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> (wlan0): taking down device.
May 20 13:06:51 kaspar-All-Series dbus[618]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
May 20 13:06:51 kaspar-All-Series dbus[618]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> WiFi hardware radio set disabled
May 20 13:06:51 kaspar-All-Series NetworkManager[932]: <info> WiFi now disabled by radio killswitch
May 20 13:06:52 kaspar-All-Series NetworkManager[932]: <info> (wlan0): bringing up device.
May 20 13:06:52 kaspar-All-Series NetworkManager[932]: <info> WiFi hardware radio set enabled
May 20 13:06:52 kaspar-All-Series NetworkManager[932]: <info> WiFi now enabled by radio killswitch
May 20 13:06:52 kaspar-All-Series NetworkManager[932]: <info> (wlan0): bringing up device.
May 20 13:06:52 kaspar-All-Series kernel: [ 692.773533] rtl8192cu: MAC auto ON okay!
May 20 13:06:52 kaspar-All-Series kernel: [ 692.784108] rtl8192cu: Tx queue select: 0x05
May 20 13:06:53 kaspar-All-Series kernel: [ 693.140284] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> (wlan0) supports 4 scan SSIDs
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> (wlan0): supplicant interface state: starting -> ready
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> (wlan0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <warn> Trying to remove a non-existant call id.
May 20 13:06:53 kaspar-All-Series wpa_supplicant[1051]: wlan0: CTRL-EVENT-SCAN-STARTED
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> (wlan0): supplicant interface state: ready -> disconnected
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> (wlan0) supports 4 scan SSIDs
May 20 13:06:53 kaspar-All-Series NetworkManager[932]: <info> Auto-activating connection 'Seened'.
J'ai résolu le problème. Voici donc le correctif officiel pour la clé USB WIFI TL-WN821N qui utilise le pilote rtl8192cu:
Installation
Assurez-vous que les prérequis nécessaires sont installés:
Sudo apt-get install linux-headers-generic build-essential dkms
Clonez ce référentiel:
git clone https://github.com/pvaret/rtl8192cu-fixes.git
Configurez-le en tant que module DKMS:
Sudo dkms add ./rtl8192cu-fixes
Construisez-le et installez-le:
Sudo dkms install 8192cu/1.10
Actualisez la liste des modules:
Sudo depmod -a
Assurez-vous que le pilote du noyau natif (et cassé) est sur liste noire:
Sudo cp ./rtl8192cu-fixes/blacklist-native-rtl8192.conf /etc/modprobe.d/
Il existe un problème connu avec la gestion de l'alimentation sur certains matériels. Si votre connexion WiFi tombe après quelques minutes, installez le fichier de paramètres de module suivant pour désactiver la gestion de l'alimentation dans votre interface WiFi:
Sudo cp ./rtl8192cu-fixes/8192cu-disable-power-management.conf /etc/modprobe.d/
Et redémarrez. Vous avez terminé.
Informations tirées de ce site: rtl8192cu-fixed
J'ai eu le même problème avec Ubuntu 14.04 et résolu avec cette solution, je voudrais mettre à jour vers la version 16.04, dans cette version, ce problème est résolu ou puis-je résoudre avec cette solution, merci