[SOLVED] Can only connect to one WiFi

jaXke · 2018-10-16 13:29:13

Hello again.

I have lately had a problem where I can only connect to a specific Wifi router(the one that's in my house, standard 5Ghz AC router), but not any other router. I have tested the setup at home with my phone's wifi hotspot and am unable to connect(actually I can connect but don't get a IP address so no internet). This is problematic because I can't connect to my university's Eduroam and I'm forced to use Windows as I had it installed on an old HDD. I'm currently using NetworkManager(because netctl is incredibly complicated to setup on enterprise/eduroam networks), however the problem exists in netctl and Wicd as well. I have tried using dhcpcd and dhclient but no luck with either.

lspci -k

03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)
	Subsystem: Intel Corporation Centrino Advanced-N 6205 (802.11a/b/g/n)
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi, wl

systemctl list-unit-files --state=enabled

UNIT FILE                                   STATE  
autostarter.service                         enabled
autovt@.service                             enabled
dbus-org.freedesktop.NetworkManager.service enabled
dbus-org.freedesktop.nm-dispatcher.service  enabled
dbus-org.freedesktop.timesync1.service      enabled
display-manager.service                     enabled
gdm.service                                 enabled
getty@.service                              enabled
httpd.service                               enabled
NetworkManager-dispatcher.service           enabled
NetworkManager-wait-online.service          enabled
NetworkManager.service                      enabled
systemd-timesyncd.service                   enabled
remote-fs.target                            enabled

14 unit files listed.

journalctl -xe after trying to connect:

loka 16 16:20:42 thinkpad-t530 kernel: iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
loka 16 16:20:43 thinkpad-t530 kernel: iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1638] device (wlp3s0): supplicant interface state: disconnected -> disabled
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1639] device (wlp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1644] device (wlp3s0): Activation: (wifi) access point 'K10000 Pro 2' has security, but secrets are r>
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1644] device (wlp3s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1647] sup-iface[0x5636d1c688c0,wlp3s0]: wps: type pbc start...
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1682] device (wlp3s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1688] device (wlp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1695] device (wlp3s0): Activation: (wifi) connection 'K10000 Pro 2' has security, and secrets exist. >
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1695] Config: added 'ssid' value 'K10000 Pro'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1695] Config: added 'scan_ssid' value '1'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1695] Config: added 'bgscan' value 'simple:30:-80:86400'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1696] Config: added 'key_mgmt' value 'WPA-PSK'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1696] Config: added 'auth_alg' value 'OPEN'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1696] Config: added 'psk' value '<hidden>'
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1854] device (wlp3s0): supplicant interface state: disabled -> disconnected
loka 16 16:20:43 thinkpad-t530 NetworkManager[27247]: <info>  [1539696043.1995] device (wlp3s0): supplicant interface state: disconnected -> scanning
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: SME: Trying to authenticate with 02:c6:ed:f6:a0:24 (SSID='K10000 Pro' freq=5240 MHz)
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: authenticate with 02:c6:ed:f6:a0:24
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: send auth to 02:c6:ed:f6:a0:24 (try 1/3)
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.7750] device (wlp3s0): supplicant interface state: scanning -> authenticating
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: Trying to associate with 02:c6:ed:f6:a0:24 (SSID='K10000 Pro' freq=5240 MHz)
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: authenticated
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: associate with 02:c6:ed:f6:a0:24 (try 1/3)
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.7924] device (wlp3s0): supplicant interface state: authenticating -> associating
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: Associated with 02:c6:ed:f6:a0:24
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: RX AssocResp from 02:c6:ed:f6:a0:24 (capab=0x11 status=0 aid=1)
loka 16 16:20:45 thinkpad-t530 kernel: wlp3s0: associated
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.7999] device (wlp3s0): supplicant interface state: associating -> associated
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: WPA: Key negotiation completed with 02:c6:ed:f6:a0:24 [PTK=CCMP GTK=CCMP]
loka 16 16:20:45 thinkpad-t530 wpa_supplicant[514]: wlp3s0: CTRL-EVENT-CONNECTED - Connection to 02:c6:ed:f6:a0:24 completed [id=1 id_str=]
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.8042] device (wlp3s0): supplicant interface state: associated -> completed
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.8043] device (wlp3s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wi>
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.8045] device (wlp3s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <info>  [1539696045.8049] dhcp4 (wlp3s0): activation: beginning transaction (timeout in 45 seconds)
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: libndp: ndp_sock_open: Failed to create ICMP6 socket.
loka 16 16:20:45 thinkpad-t530 NetworkManager[27247]: <error> [1539696045.8102] device (wlp3s0): addrconf6: failed to start neighbor discovery: failure creating libndp socket:>
loka 16 16:20:46 thinkpad-t530 wpa_supplicant[514]: wlp3s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-33 noise=9999 txrate=6000
loka 16 16:20:47 thinkpad-t530 /usr/lib/gdm-x-session[706]: ERROR block_reap:328: [cpu_usage] bad exit code 2
loka 16 16:20:53 thinkpad-t530 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/syste>
loka 16 16:20:53 thinkpad-t530 kernel: audit: type=1131 audit(1539696053.055:93): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd">
loka 16 16:20:57 thinkpad-t530 /usr/lib/gdm-x-session[706]: ERROR block_reap:328: [cpu_usage] bad exit code 2

For reference, when wlp3s0 is set down, netctl will connect but will not obtain IP address and if set up it will instantly throw error"The interface of network profile 'wlp3s0-K10000 Pro' is already up".

Thanks!

Last edited by jaXke (2018-10-16 21:16:28)

seth · 2018-10-16 21:06:40

Did you disable IPv6?

jaXke · 2018-10-16 21:15:54

seth wrote:

Did you disable IPv6?

Aye, it was disabled at first and I tried disabling it too, but nothing changed. I re-installed the system a couple of hours ago and now I seem to be able to connect to the Android(barely and takes quite a few tries but works). Hopefully I'm able to connect to Eduroam as well :thinking:

Solved.

seth · 2018-10-16 21:20:40

For completeness sake, "libndp: ndp_sock_open: Failed to create ICMP6 socket." is a symptom of a disabled IPv6 stack, so if it shows up despite IPv6 NOT being disabled, that'd indicate a bug in the IPv6 stack.
If you meant to say that things now work *after* ("because") you disabled IPv6, that might be only coincidental.

jaXke · 2018-10-16 21:25:26

seth wrote:

For completeness sake, "libndp: ndp_sock_open: Failed to create ICMP6 socket." is a symptom of a disabled IPv6 stack, so if it shows up despite IPv6 NOT being disabled, that'd indicate a bug in the IPv6 stack.
If you meant to say that things now work *after* ("because") you disabled IPv6, that might be only coincidental.

Thanks for the info. I'm quite sure that journalctl stack trace is taken when IPv6 was disabled because I "enabled" it temporarily only once.

Arch Linux

#1 2018-10-16 13:29:13

[SOLVED] Can only connect to one WiFi

#2 2018-10-16 21:06:40

Re: [SOLVED] Can only connect to one WiFi

#3 2018-10-16 21:15:54

Re: [SOLVED] Can only connect to one WiFi

#4 2018-10-16 21:20:40

Re: [SOLVED] Can only connect to one WiFi

#5 2018-10-16 21:25:26

Re: [SOLVED] Can only connect to one WiFi

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