Networkmanager: Couldn't disconnect supplicant interface WiFi problem

Shino · 2015-03-16 18:21:36

Hi. I've got a big problem. I try to connect to a WIFI. But it doesn't work.

I'm using Networkmanager and gnome.

I checked: dhcpcd and other network-services are NOT running. Except NetworkManager
I can connect to a network created with my cellphone. Only bigger networks (which use multiple accesspoints?) don't work.

Here's the log:

Mar 16 19:13:22 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: authenticating -> disconnected
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: disconnected -> scanning
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> (wlp4s0): Activation: (wifi) association took too long, failing activation
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: config -> failed (reason 'ssid-not-found') [50 120 53]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> (wlp4s0): Activation: failed for connection 'wlanname_5ghz'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): deactivating device (reason 'none') [0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Auto-activating connection 'wlanname_5ghz'.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: starting connection 'wlanname_5ghz'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) started...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) scheduled...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) complete.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) starting...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: prepare -> config (reason 'none') [40 50 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: (wifi) access point 'wlanname_5ghz' has security, but secrets are required.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: config -> need-auth (reason 'none') [50 60 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) complete.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Mar 16 19:13:32 ThinkPad-T540p gnome-session[637]: Gjs-Message: JS LOG: An active wireless connection, in infrastructure mode, involves no access point?
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> Could not get scan request result: Scan request rejected
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) started...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) scheduled...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 1 of 5 (Device Prepare) complete.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) starting...
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): device state change: prepare -> config (reason 'none') [40 50 0]
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: (wifi) connection 'wlanname_5ghz' has security, and secrets exist. No new secrets needed.
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Config: added 'ssid' value 'wlanname_5ghz'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Config: added 'scan_ssid' value '1'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Config: added 'auth_alg' value 'OPEN'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> Config: added 'psk' value '<omitted>'
Mar 16 19:13:32 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): Activation: Stage 2 of 5 (Device Configure) complete.
Mar 16 19:13:33 ThinkPad-T540p NetworkManager[228]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
Mar 16 19:13:33 ThinkPad-T540p NetworkManager[228]: <info> Config: set interface ap_scan to 1
Mar 16 19:13:36 ThinkPad-T540p kernel: wlp4s0: authenticate with dc:9f:db:b5:a7:f0
Mar 16 19:13:36 ThinkPad-T540p kernel: wlp4s0: send auth to dc:9f:db:b5:a7:f0 (try 1/3)
Mar 16 19:13:36 ThinkPad-T540p kernel: wlp4s0: dc:9f:db:b5:a7:f0 denied authentication (status 1)
Mar 16 19:13:36 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: scanning -> authenticating
Mar 16 19:13:36 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: authenticating -> disconnected
Mar 16 19:13:46 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: disconnected -> scanning
Mar 16 19:13:46 ThinkPad-T540p kernel: wlp4s0: authenticate with 06:27:22:6b:00:1b
Mar 16 19:13:46 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: scanning -> authenticating
Mar 16 19:13:46 ThinkPad-T540p kernel: wlp4s0: direct probe to 06:27:22:6b:00:1b (try 1/3)
Mar 16 19:13:46 ThinkPad-T540p kernel: wlp4s0: direct probe to 06:27:22:6b:00:1b (try 2/3)
Mar 16 19:13:46 ThinkPad-T540p kernel: wlp4s0: direct probe to 06:27:22:6b:00:1b (try 3/3)
Mar 16 19:13:47 ThinkPad-T540p kernel: wlp4s0: authentication with 06:27:22:6b:00:1b timed out
Mar 16 19:13:47 ThinkPad-T540p NetworkManager[228]: <info> (wlp4s0): supplicant interface state: authenticating -> disconnected

The network device is:

04:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

I found no way to connect to the WiFi. Sometimes it works. However, it's pure luck.
Thanks

Shino · 2015-03-16 18:31:43

I forgot to say:

LAN is working fine. Just WLAN isn't working

Head_on_a_Stick · 2015-03-16 20:43:16

How are you starting GNOME?

Shino · 2015-03-16 21:45:15

I start gnome via GDM.

GDM is configured to start automatically at boot.

Head_on_a_Stick · 2015-03-16 21:55:52

If it works sometimes then that suggests a hardware problem -- maybe your card is dying.

Have you checked that the card is seated properly?

Do you have this problem with (a live version of) other distributions?

Shino · 2015-03-16 22:07:54

The card works perfectly. But it's a pain to get a connection. My WiFi at home is working fine, too. Windows can use the WiFi without any problems. It's a Linux problem. Some update destroyed it. It worked a few months ago.

Last edited by Shino (2015-03-16 22:12:04)

Head_on_a_Stick · 2015-03-16 22:13:06

Shino wrote:

Some update destroyed something.

Check /var/log/pacman.log and downgrade all the packages that have been changed since the trouble started one by one until you find the package responsible.

Shino · 2015-03-16 22:27:35

Actually that's not possible. The problem is relatively old. It doesn't affect me at home. At home everything's working fine. I just realized the problem a few days ago when I started to use the WiFi at my university. At the moment I'm connected successfully.

Sometimes gnome throws an error notification "Activation of network failed".
The WiFi is working correctly. There are many other PCs connected.

Shino · 2015-03-16 22:30:10

At the moment everything's working fine ... Actually I don't understand anything... It's just weird.

Shino · 2015-03-19 22:59:44

Hi Guys. I have an update.

The WiFi isn't working under Windows either.
Some people have those problems, too.

I couldn't find out whether this is a driver or a hardware problem.

Can anyone help?

Head_on_a_Stick · 2015-03-20 08:02:14

Shino wrote:

The WiFi isn't working under Windows either.

Sounds like a hardware problem then.

You could check using a few different live distributions.

Arch Linux

#1 2015-03-16 18:21:36

Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#2 2015-03-16 18:31:43

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#3 2015-03-16 20:43:16

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#4 2015-03-16 21:45:15

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#5 2015-03-16 21:55:52

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#6 2015-03-16 22:07:54

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#7 2015-03-16 22:13:06

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#8 2015-03-16 22:27:35

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#9 2015-03-16 22:30:10

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#10 2015-03-19 22:59:44

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

#11 2015-03-20 08:02:14

Re: Networkmanager: Couldn't disconnect supplicant interface WiFi problem

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