Unable to use the wifi since the last -Syyu

Question

Good morning,
About a week ago, I made my bi-mensual pacman -Syyu.
Last night, I finally reboot my laptop (due to an infinite loop, damn it). And here comes the christmas surprise : no more wifi!
I tried everything, but the wlp2s0 won't connect. I was able to connect the laptop to the internet using an rj45 and a reboot (I don't know why I have to reboot).
So here's a few commands, I'll be able to add more if you want after a few hours of sleep.
[simon@pizza4ever ~]$ systemctl
  UNIT                                                                                     LOAD   ACTIVE SUB       DESCRIPTION
  proc-sys-fs-binfmt_misc.automount                                                        loaded active running   Arbitrary Executable File Formats File System Automount Point
  sys-devices-pci0000:00-0000:00:02.0-drm-card0-card0\x2dLVDS\x2d1-intel_backlight.device  loaded active plugged   /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight
  sys-devices-pci0000:00-0000:00:1b.0-sound-card0.device                                   loaded active plugged   7 Series/C210 Series Chipset Family High Definition Audio Controller
  sys-devices-pci0000:00-0000:00:1c.0-0000:01:00.0-net-enp1s0.device                       loaded active plugged   RTL8101E/RTL8102E PCI Express Fast Ethernet controller
  sys-devices-pci0000:00-0000:00:1c.1-0000:02:00.0-ieee80211-phy0-rfkill0.device           loaded active plugged   /sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0/ieee80211/phy0/rfkill0
  sys-devices-pci0000:00-0000:00:1c.1-0000:02:00.0-net-wlp2s0.device                       loaded active plugged   QCA9565 / AR9565 Wireless Network Adapter
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda1.device loaded active plugged   WDC_WD5000LPVX-75V0TT0 1
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda2.device loaded active plugged   WDC_WD5000LPVX-75V0TT0 2
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda5.device loaded active plugged   WDC_WD5000LPVX-75V0TT0 5
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda.device      loaded active plugged   WDC_WD5000LPVX-75V0TT0
  sys-devices-pci0000:00-0000:00:1f.2-ata3-host2-target2:0:0-2:0:0:0-block-sr0.device      loaded active plugged   MATSHITA_DVD+_-RW_UJ8C2
  sys-devices-platform-serial8250-tty-ttyS0.device                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS0
  sys-devices-platform-serial8250-tty-ttyS1.device                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS1
  sys-devices-platform-serial8250-tty-ttyS2.device                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS2
  sys-devices-platform-serial8250-tty-ttyS3.device                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS3
  sys-module-configfs.device                                                               loaded active plugged   /sys/module/configfs
  sys-subsystem-net-devices-enp1s0.device                                                  loaded active plugged   RTL8101E/RTL8102E PCI Express Fast Ethernet controller
  sys-subsystem-net-devices-wlp2s0.device                                                  loaded active plugged   QCA9565 / AR9565 Wireless Network Adapter
  -.mount                                                                                  loaded active mounted   /
  dev-hugepages.mount                                                                      loaded active mounted   Huge Pages File System
  dev-mqueue.mount                                                                         loaded active mounted   POSIX Message Queue File System
  proc-sys-fs-binfmt_misc.mount                                                            loaded active mounted   Arbitrary Executable File Formats File System
  run-user-1000.mount                                                                      loaded active mounted   /run/user/1000
  run-user-620.mount                                                                       loaded active mounted   /run/user/620
  sys-kernel-config.mount                                                                  loaded active mounted   Configuration File System
  sys-kernel-debug.mount                                                                   loaded active mounted   Debug File System
  tmp.mount                                                                                loaded active mounted   Temporary Directory
  systemd-ask-password-console.path                                                        loaded active waiting   Dispatch Password Requests to Console Directory Watch
  systemd-ask-password-wall.path                                                           loaded active waiting   Forward Password Requests to Wall Directory Watch
  session-c1.scope                                                                         loaded active abandoned Session c1 of user lightdm
  session-c2.scope                                                                         loaded active running   Session c2 of user simon
  accounts-daemon.service                                                                  loaded active running   Accounts Service
  dbus.service                                                                             loaded active running   D-Bus System Message Bus
● [email protected]                                                                    loaded failed failed    dhcpcd on enp1s0
  [email protected]                                                                    loaded active running   Dropbox
  kmod-static-nodes.service                                                                loaded active exited    Create list of required static device nodes for the current kernel
  lightdm.service                                                                          loaded active running   Light Display Manager
  mongodb.service                                                                          loaded active running   High-performance, schema-free document-oriented database
  netctl.service                                                                           loaded active exited    (Re)store the netctl profile state
● netctl@wlp2s0\x2d326356.service                                                          loaded failed failed    Automatically generated profile by wifi-menu
  NetworkManager.service                                                                   loaded active running   Network Manager
  polkit.service                                                                           loaded active running   Authorization Manager
  systemd-backlight@backlight:intel_backlight.service                                      loaded active exited    Load/Save Screen Backlight Brightness of backlight:intel_backlight
  systemd-binfmt.service                                                                   loaded active exited    Set Up Additional Binary Formats
  systemd-journal-flush.service                                                            loaded active exited    Trigger Flushing of Journal to Persistent Storage
  systemd-journald.service                                                                 loaded active running   Journal Service
  systemd-logind.service                                                                   loaded active running   Login Service
  systemd-random-seed.service                                                              loaded active exited    Load/Save Random Seed
  systemd-remount-fs.service                                                               loaded active exited    Remount Root and Kernel File Systems
  [email protected]                                                           loaded active exited    Load/Save RF Kill Switch Status of rfkill0
  [email protected]                                                           loaded active exited    Load/Save RF Kill Switch Status of rfkill1
  [email protected]                                                           loaded active exited    Load/Save RF Kill Switch Status of rfkill2
  [email protected]                                                           loaded active exited    Load/Save RF Kill Switch Status of rfkill3
  systemd-sysctl.service                                                                   loaded active exited    Apply Kernel Variables
  systemd-tmpfiles-setup-dev.service                                                       loaded active exited    Create Static Device Nodes in /dev
  systemd-tmpfiles-setup.service                                                           loaded active exited    Create Volatile Files and Directories
  systemd-udev-trigger.service                                                             loaded active exited    udev Coldplug all Devices
  systemd-udevd.service                                                                    loaded active running   udev Kernel Device Manager
  systemd-update-utmp.service                                                              loaded active exited    Update UTMP about System Boot/Shutdown
  systemd-user-sessions.service                                                            loaded active exited    Permit User Sessions
  systemd-vconsole-setup.service                                                           loaded active exited    Setup Virtual Console
  [email protected]                                                                        loaded active running   User Manager for UID 1000
  [email protected]                                                                         loaded active running   User Manager for UID 620
  wpa_supplicant.service                                                                   loaded active running   WPA supplicant
  -.slice                                                                                  loaded active active    Root Slice
  system-dhcpcd.slice                                                                      loaded active active    system-dhcpcd.slice
  system-dropbox.slice                                                                     loaded active active    system-dropbox.slice
  system-getty.slice                                                                       loaded active active    system-getty.slice
  system-netctl.slice                                                                      loaded active active    system-netctl.slice
  system-systemd\x2dbacklight.slice                                                        loaded active active    system-systemd\x2dbacklight.slice
  system-systemd\x2drfkill.slice                                                           loaded active active    system-systemd\x2drfkill.slice
  system.slice                                                                             loaded active active    System Slice
  user-1000.slice                                                                          loaded active active    user-1000.slice
  user-620.slice                                                                           loaded active active    user-620.slice
  user.slice                                                                               loaded active active    User and Session Slice
  dbus.socket                                                                              loaded active running   D-Bus System Message Bus Socket
  dm-event.socket                                                                          loaded active listening Device-mapper event daemon FIFOs
  lvm2-lvmetad.socket                                                                      loaded active listening LVM2 metadata daemon socket
  systemd-initctl.socket                                                                   loaded active listening /dev/initctl Compatibility Named Pipe
  systemd-journald-dev-log.socket                                                          loaded active running   Journal Socket (/dev/log)
  systemd-journald.socket                                                                  loaded active running   Journal Socket
  systemd-shutdownd.socket                                                                 loaded active listening Delayed Shutdown Socket
  systemd-udevd-control.socket                                                             loaded active running   udev Control Socket
  systemd-udevd-kernel.socket                                                              loaded active running   udev Kernel Socket
  dev-sda5.swap                                                                            loaded active active    /dev/sda5
  basic.target                                                                             loaded active active    Basic System
  cryptsetup.target                                                                        loaded active active    Encrypted Volumes
  getty.target                                                                             loaded active active    Login Prompts
  graphical.target                                                                         loaded active active    Graphical Interface
  local-fs-pre.target                                                                      loaded active active    Local File Systems (Pre)
  local-fs.target                                                                          loaded active active    Local File Systems
  multi-user.target                                                                        loaded active active    Multi-User System
  network.target                                                                           loaded active active    Network
  paths.target                                                                             loaded active active    Paths
  remote-fs.target                                                                         loaded active active    Remote File Systems
  slices.target                                                                            loaded active active    Slices
  sockets.target                                                                           loaded active active    Sockets
  sound.target                                                                             loaded active active    Sound Card
  swap.target                                                                              loaded active active    Swap
  sysinit.target                                                                           loaded active active    System Initialization
  timers.target                                                                            loaded active active    Timers
  logrotate.timer                                                                          loaded active waiting   Daily rotation of log files
  man-db.timer                                                                             loaded active waiting   Daily man-db cache update
  shadow.timer                                                                             loaded active waiting   Daily verification of password and group files
  systemd-tmpfiles-clean.timer                                                             loaded active waiting   Daily Cleanup of Temporary Directories
LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
105 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
[simon@pizza4ever ~]$ iwconfig
wlp2s0    IEEE 802.11bgn  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off  
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
lo        no wireless extensions.
enp1s0    no wireless extensions.
[simon@pizza4ever ~]$ systemctl status 'netctl@wlp2s0\x2d326356.service'
● netctl@wlp2s0\x2d326356.service - Automatically generated profile by wifi-menu
   Loaded: loaded (/etc/systemd/system/netctl@wlp2s0\x2d326356.service; enabled)
   Active: failed (Result: exit-code) since Thu 2014-12-25 22:38:49 UTC; 14s ago
     Docs: man:netctl.profile(5)
   Process: 11952 ExecStart=/usr/lib/network/network start %I (code=exited, status=1/FAILURE)
   Main PID: 11952 (code=exited, status=1/FAILURE)
[simon@pizza4ever netctl]$ sudo cat wlp2s0-326356
Description='Automatically generated profile by wifi-menu'
Interface=wlp2s0
Connection=wireless
Security=wpa
ESSID=326356
IP=dhcp
Key=*****
[simon@pizza4ever ~]$ lspci -k
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev
05)
        Subsystem: Dell Device 0597
        Kernel driver in use: r8169
        Kernel modules: r8169
02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
        Subsystem: Dell Device 020c
        Kernel driver in use: ath9k
        Kernel modules: ath9k, wl
[simon@pizza4ever netctl]$ ip link set wlp2s0 up
RTNETLINK answers: Operation not permitted
[simon@pizza4ever netctl]$ sudo !!
sudo ip link set wlp2s0 up
RTNETLINK answers: Operation not possible due to RF-kill
If someone know how to fix that, it would be awesome.
Oh and btw, even if I use the rj45 cable, my maximum download limit is 100kbps with the package manage, is that normal?
Thanks!

Answer 1

I tried
[simon@pizza4ever ~]$ sudo ip link set wlp2s0 up
[simon@pizza4ever ~]$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 74:86:7a:3b:30:19 brd ff:ff:ff:ff:ff:ff
3: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether 70:18:8b:05:4e:c7 brd ff:ff:ff:ff:ff:ff
And the journalctl
Dec 26 18:41:25 pizza4ever dhcpcd[10660]: wlp2s0: adding address fe80::fb94:b94d:3848:6e74
Dec 26 18:41:25 pizza4ever dhcpcd[10660]: if_addaddress6: Operation not permitted
Dec 26 18:41:25 pizza4ever dhcpcd[10667]: wlp2s0: starting wpa_supplicant
Dec 26 18:41:25 pizza4ever dhcpcd[10670]: wlp2s0: failed to start wpa_supplicant
Dec 26 18:41:25 pizza4ever dhcpcd[10671]: wlp2s0: Successfully initialized wpa_supplicant
Line 1182: unknown EAP method 'SIM'
You may need to add support for this EAP method during wpa_supplican
build time configuration.
See README for more information.
Line 1182: failed to parse eap 'SIM'.
Line 1185: failed to parse network block.
Line 1192: unknown EAP method 'PSK'
You may need to add support for this EAP method during wpa_supplican
build time configuration.
See README for more information.
Line 1192: failed to parse eap 'PSK'.
Line 1196: failed to parse network block.
Line 1228: unknown EAP method 'IKEV2'
You may need to add support for this EAP method during wpa_supplican
build time configuration.
See README for more information.
Line 1228: failed to parse eap 'IKEV2'.
Line 1231: failed to parse network block.
Failed to read or parse configuration '/etc/wpa_supplicant/wpa_suppl
Dec 26 18:41:25 pizza4ever dhcpcd[10660]: wlp2s0: if_up: Operation not permitted
Dec 26 18:41:25 pizza4ever dhcpcd[10660]: wlp2s0: waiting for carrier
Dec 26 18:41:26 pizza4ever dhcpcd[10660]: received signal INT from PID 0, stopping
Dec 26 18:41:26 pizza4ever dhcpcd[10660]: wlp2s0: removing interface
Dec 26 18:41:26 pizza4ever dhcpcd[10660]: exited
Last edited by Bl4ckb0ne (2014-12-26 23:57:32)