Arch Linux

elfomelo

Member

Registered: 2011-10-27

Posts: 47

[Solved] Problem getting wireless to connect

Hello people,

I'm having problems when trying to connect to an wireless network. The networkmanager applet indicates the wireless is up, but doesn't find any network to connect.

I've tried

# iw dev wlp2s0 scan
command failed: Network is down (-100)

and

# ip link set wlp2s0 up
RTNETLINK answers: Input/output error 

Also

# systemctl start dhcpcd@wlp2s0.service
Job for dhcpcd@wlp2s0.service failed because the control process exited with error code.
See "systemctl status dhcpcd@wlp2s0.service" and "journalctl -xe" for details.

and

# systemctl status dhcpcd@wlp2s0.service
● dhcpcd@wlp2s0.service - dhcpcd on wlp2s0
   Loaded: loaded (/usr/lib/systemd/system/dhcpcd@.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since qui 2016-09-01 11:15:01 BRT; 52s ago
  Process: 3904 ExecStart=/usr/bin/dhcpcd -q -w %I (code=exited, status=1/FAILURE)

set 01 11:14:31 sesshoumaru systemd[1]: Starting dhcpcd on wlp2s0...
set 01 11:14:34 sesshoumaru dhcpcd[3904]: wlp2s0: if_up: Input/output error
set 01 11:14:34 sesshoumaru dhcpcd[3904]: wlp2s0: waiting for carrier
set 01 11:15:01 sesshoumaru systemd[1]: dhcpcd@wlp2s0.service: Control process exited, code=exited status=1
set 01 11:15:01 sesshoumaru systemd[1]: Failed to start dhcpcd on wlp2s0.
set 01 11:15:01 sesshoumaru systemd[1]: dhcpcd@wlp2s0.service: Unit entered failed state.
set 01 11:15:01 sesshoumaru systemd[1]: dhcpcd@wlp2s0.service: Failed with result 'exit-code'.

Thanks for any help

Last edited by elfomelo (2016-09-01 19:29:26)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,774

Re: [Solved] Problem getting wireless to connect

What are the output of ip link , iw list , and of lspci -nn  ?

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yousuc

Member

From: Missouri

Registered: 2016-07-27

Posts: 19

Website

Re: [Solved] Problem getting wireless to connect

You mentioned NetworkManager yet you are enabling dhcpd@.service and expect it to show under NetworkManager Applet?

sudo systemctl disable dhcpcd@wlp2s0; sudo systemctl stop dhcpd@wlp2s0

Enable/Start NetworkManager

sudo systemctl enable NetworkManager; sudo systemctl start NetworkManager

Now you should see everything correctly when you open System->Network.

Last edited by yousuc (2016-09-01 16:36:07)

elfomelo

Member

Registered: 2011-10-27

Posts: 47

Re: [Solved] Problem getting wireless to connect

You mentioned NetworkManager yet you are enabling dhcpd@.service and expect it to show under NetworkManager Applet?

sudo systemctl disable dhcpcd@wlp2s0; sudo systemctl stop dhcpd@wlp2s0

Enable/Start NetworkManager

sudo systemctl enable NetworkManager; sudo systemctl start NetworkManager

Now you should see everything correctly when you open System->Network.

Yep that solved. Completely forgot what I was doing. Thanks!

yousuc

Member

From: Missouri

Registered: 2016-07-27

Posts: 19

Website

Re: [Solved] Problem getting wireless to connect

You are welcome!