Wifi not working RTNETLINK answers: Input/output error

Strelok · 2016-11-15 03:49:11

I'm on a ThinkPad P50. wifi-menu can see wireless networks, but whenever I try to connect to one it fails

sudo ip link set wlp4s0 up
RTNETLINK answers: Input/output error

lspci -k
04:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
        Subsystem: Intel Corporation Device 0130
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

dmesg | grep firmware
[    2.389618] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-24.ucode failed with error -2
[    2.389631] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-23.ucode failed with error -2
[    2.397024] iwlwifi 0000:04:00.0: loaded firmware version 22.361476.0 op_mode iwlmvm
[    2.833839] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[    2.872604] [drm] GuC firmware load skipped
[    3.016867] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[    3.019490] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi
[    3.063710] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[    3.906046] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[    4.966074] Bluetooth: hci0: Waiting for firmware download to complete
[   64.025908] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[  685.432932] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1841.059510] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1841.464570] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1841.671602] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1852.211912] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1852.419362] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1863.216857] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1863.423343] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1874.209126] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1874.415381] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1885.226791] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1885.444463] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1896.215320] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 1896.432537] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 2360.205273] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 2554.585671] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 2554.802998] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0
[ 3378.124651] iwlwifi 0000:04:00.0: Loaded firmware version: 22.361476.0

Last edited by Strelok (2016-11-15 03:49:57)

seth · 2016-11-15 15:18:22

Most common cause: multiple services (networkmanager, dhcpd, systemd-network, netctl) are lingering around on the device.
If you're very unlucky, the chip isn't properly initialized and you'll require some modue outside the mainline kernel, but first ensure you don't have any other services running.

systemctl list-units | grep -iE '(net|dhc)'

for a rough check.

Strelok · 2016-11-15 18:36:24

I'm not sure which of these are conflicting. I tried to start netctl again and it failed again.

  sys-devices-pci0000:00-0000:00:1c.2-0000:04:00.0-net-wlp4s0.device                       loaded active plugged   Wireless 8260
  sys-devices-pci0000:00-0000:00:1f.6-net-enp0s31f6.device                                 loaded active plugged   Ethernet Connection (2) I219-LM
  sys-subsystem-net-devices-enp0s31f6.device                                               loaded active plugged   Ethernet Connection (2) I219-LM
  sys-subsystem-net-devices-wlp4s0.device                                                  loaded active plugged   Wireless 8260
  dhcpcd.service                                                                           loaded active running   dhcpcd on all interfaces
● netctl@\x2a.service                                                                      loaded failed failed    Automatically generated profile by wifi-menu
  NetworkManager.service                                                                   loaded active running   Network Manager
  system-netctl.slice                                                                      loaded active active    system-netctl.slice
  network.target                                                                           loaded active active    Network

seth · 2016-11-15 19:43:08

dhcpcd.service loaded active running dhcpcd on all interfaces
NetworkManager.service loaded active running Network Manager

Choose one service to manage your network, if you want to use netctl, ditch networkmanager et vv.
I don't know whether dhcpd is utilized by NetworkManager, but if you go for netctl, ensure it to be disabled as well.

Head_on_a_Stick · 2016-11-16 08:17:27

seth wrote:

I don't know whether dhcpd is utilized by NetworkManager

Probably, check with:

systemctl list-unit-files --state=enabled

@OP: please post the output of:

# rfkill list all

seth · 2016-11-16 08:30:22

Do I look like I'd install NM, let alone enable it?
;-P

Arch Linux

#1 2016-11-15 03:49:11

Wifi not working RTNETLINK answers: Input/output error

#2 2016-11-15 15:18:22

Re: Wifi not working RTNETLINK answers: Input/output error

#3 2016-11-15 18:36:24

Re: Wifi not working RTNETLINK answers: Input/output error

#4 2016-11-15 19:43:08

Re: Wifi not working RTNETLINK answers: Input/output error

#5 2016-11-16 08:17:27

Re: Wifi not working RTNETLINK answers: Input/output error

#6 2016-11-16 08:30:22

Re: Wifi not working RTNETLINK answers: Input/output error

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