Can't use wifi

[Nayar]

Hi, just installed this.

I cannot connect to WiFi as i get the message below.

Other issues i found on my blog: http://nayarweb.com/blog/2015/kubunt...1-wifi-no-use/

I am on a Dell Inspiron 5547

[ronw]

I have to manually enable my wifi adapter on each boot via keyboard. I don't use it much so haven't really investigated.

What do $ ifconfig and $ iwconfig say?

Post which card you have and someone may recognize it.

[Nayar]

Well, i can find the SSIDs in the network manager. It just can't connect to it.

[ronw]

Maybe $ tail -f /var/log/syslog as you try to connect will provide some clues.

[Nayar]

Maybe $ tail -f /var/log/syslog as you try to connect will provide some clues.

Can't make much sense from below.

Mar  2 21:40:40 nayar-area51 wpa_supplicant[1109]: wlan0: CTRL-EVENT-SCAN-STARTED 
Mar  2 21:40:40 nayar-area51 NetworkManager[934]: <info> (wlan0): supplicant interface state: disconnected -> scanning
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <warn> Activation (wlan0/wireless): association took too long, failing activation.
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <info> (wlan0): device state change: config -> failed (reason 'ssid-not-found') [50 120 53]
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <warn> Activation (wlan0) failed for connection ':P'
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <info> (wlan0): deactivating device (reason 'none') [0]
Mar  2 21:40:42 nayar-area51 wpa_supplicant[1109]: wlan0: Reject scan trigger since one is already pending
Mar  2 21:40:42 nayar-area51 NetworkManager[934]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
Mar  2 21:40:45 nayar-area51 wpa_supplicant[1109]: wlan0: CTRL-EVENT-SCAN-STARTED

[vinnywright]

lspci

will show what wireless card you have ,,,,,,,,,,,,,I'm thinking Broadcom .

if you go to system settings>Driver manager dose it offer you an updated driver .

VINNY

[dpeets]

$ lspci
...
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01)
03:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
04:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
$ tail -f /var/log/syslog
Mar 5 08:13:20 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SCAN-STARTED
Mar 5 08:13:20 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: disconnected -> scanning
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <warn> Activation (wlan0/wireless): asso
ciation took too long, failing activation.
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: con
fig -> failed (reason 'ssid-not-found') [50 120 53]
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <warn> Activation (wlan0) failed for con
nection 'Hydrant 1'
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <warn> Couldn't disconnect supplicant in
terface: This interface is not connected.
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: fai
led -> disconnected (reason 'none') [120 30 0]
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <info> (wlan0): deactivating device (rea
son 'none') [0]
Mar 5 08:13:22 Hydrant-II wpa_supplicant[1030]: wlan0: Reject scan trigger since one is
already pending
Mar 5 08:13:22 Hydrant-II NetworkManager[939]: <warn> Couldn't disconnect supplicant in
terface: This interface is not connected.
Mar 5 08:13:25 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SCAN-STARTED



Wired network works fine, symptoms otherwise as above. Same issue on Live CD and once installed on HDD and updated.

[dpeets]

OK, once more with the system log:

Mar 5 08:20:22 Hydrant-II NetworkManager[939]: <info> kernel firmware directory '/lib/f
irmware' changed
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) starting conne
ction 'Hydrant 1'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) scheduled...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) started...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: dis
connected -> prepare (reason 'none') [30 40 0]
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) scheduled...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) complete.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) starting...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: pre
pare -> config (reason 'none') [40 50 0]
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0/wireless): acce
ss point 'Hydrant 1' has security, but secrets are required.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: con
fig -> need-auth (reason 'none') [50 60 0]
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) complete.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) scheduled...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <warn> Couldn't disconnect supplicant in
terface: This interface is not connected.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) started...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: nee
d-auth -> prepare (reason 'none') [60 40 0]
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) scheduled...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 1 of 5 (
Device Prepare) complete.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) starting...
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: pre
pare -> config (reason 'none') [40 50 0]
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0/wireless): conn
ection 'Hydrant 1' has security, and secrets exist. No new secrets needed.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: added 'ssid' value 'Hydra
nt'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: added 'scan_ssid' value '
1'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: added 'key_mgmt' value 'W
PA-PSK'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: added 'auth_alg' value 'O
PEN'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: added 'psk' value '<omitt
ed>'
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Activation (wlan0) Stage 2 of 5 (
Device Configure) complete.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <warn> Couldn't disconnect supplicant in
terface: This interface is not connected.
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> Config: set interface ap_scan to
1
Mar 5 08:20:09 Hydrant-II wpa_supplicant[1030]: message repeated 8 times: [ wlan0: CTRL
-EVENT-SCAN-STARTED ]
Mar 5 08:21:03 Hydrant-II wpa_supplicant[1030]: wlan0: SME: Trying to authenticate with
90:9f:33:31:fb:6c (SSID='Hydrant' freq=2412 MHz)
Mar 5 08:21:03 Hydrant-II kernel: [ 3054.937881] wlan0: authenticate with 90:9f:33:31:f
b:6c
Mar 5 08:21:03 Hydrant-II kernel: [ 3054.938807] wlan0: send auth to 90:9f:33:31:fb:6c
(try 1/3)
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: scanning -> authenticating
Mar 5 08:21:03 Hydrant-II kernel: [ 3055.011855] wlan0: send auth to 90:9f:33:31:fb:6c
(try 2/3)
Mar 5 08:21:03 Hydrant-II kernel: [ 3055.084014] wlan0: send auth to 90:9f:33:31:fb:6c
(try 3/3)
Mar 5 08:21:03 Hydrant-II kernel: [ 3055.151097] wlan0: authentication with 90:9f:33:31
:fb:6c timed out
Mar 5 08:21:03 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id
=0 ssid="Hydrant" auth_failures=1 duration=10
Mar 5 08:21:03 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: authenticating -> disconnected
Mar 5 08:21:13 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SCAN-STARTED
Mar 5 08:21:13 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: disconnected -> scanning
Mar 5 08:21:17 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SSID-REENABLED id=0 s
sid="Hydrant"
Mar 5 08:21:17 Hydrant-II wpa_supplicant[1030]: wlan0: SME: Trying to authenticate with
90:9f:33:31:fb:6c (SSID='Hydrant' freq=2412 MHz)
Mar 5 08:21:17 Hydrant-II kernel: [ 3068.963312] wlan0: authenticate with 90:9f:33:31:f
b:6c
Mar 5 08:21:17 Hydrant-II kernel: [ 3068.965205] wlan0: send auth to 90:9f:33:31:fb:6c
(try 1/3)
Mar 5 08:21:17 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: scanning -> authenticating
Mar 5 08:21:17 Hydrant-II kernel: [ 3069.038508] wlan0: send auth to 90:9f:33:31:fb:6c
(try 2/3)
Mar 5 08:21:17 Hydrant-II kernel: [ 3069.104054] wlan0: send auth to 90:9f:33:31:fb:6c
(try 3/3)
Mar 5 08:21:17 Hydrant-II kernel: [ 3069.166052] wlan0: authentication with 90:9f:33:31
:fb:6c timed out
Mar 5 08:21:17 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id
=0 ssid="Hydrant" auth_failures=2 duration=20
Mar 5 08:21:17 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: authenticating -> disconnected
Mar 5 08:21:27 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SCAN-STARTED
Mar 5 08:21:27 Hydrant-II NetworkManager[939]: <info> (wlan0): supplicant interface sta
te: disconnected -> scanning
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <warn> Activation (wlan0/wireless): asso
ciation took too long, failing activation.
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: con
fig -> failed (reason 'ssid-not-found') [50 120 53]
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <warn> Activation (wlan0) failed for con
nection 'Hydrant 1'
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <info> (wlan0): device state change: fai
led -> disconnected (reason 'none') [120 30 0]
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <info> (wlan0): deactivating device (rea
son 'none') [0]
Mar 5 08:21:28 Hydrant-II NetworkManager[939]: <warn> Couldn't disconnect supplicant in
terface: This interface is not connected.
Mar 5 08:21:28 Hydrant-II wpa_supplicant[1030]: wlan0: Reject scan trigger since one is
already pending
Mar 5 08:21:31 Hydrant-II wpa_supplicant[1030]: wlan0: CTRL-EVENT-SCAN-STARTED


Driver Manager, btw, contains only "Using Processor micromode firmware for Intel CPUs from intel-microcode"

[Snowhog]

An obvious question, but, did you try clicking on either of the Available connections??

[dpeets]

Yes.

click network manager tray icon ---> click Connect on anything under Available Connections ---> (enter information or wallet password if needed) ---> wait ---> fails with the two error messages shown above. The selected SSID only gets to "Configuring Interface"

[Snowhog]

Have you actually configured the wifi connection??

[dpeets]

Settings were autodetected and look fine, password is correct. Identical issue trying to connect to a completely unsecured open network. Was also unable to connect during installation from Live CD (worked fine with 14.10 and 14.04.02 Live CDs earlier same day).

At the risk of being equally obvious, I'm leaning toward assuming it's a bug.

[Snowhog]

Is there a hardware switch and/or keyboard switch for turning on/off the wireless? And lastly, have you checked to see if a proprietary driver is available? System Settings > Driver Manager

[dpeets]

Activating the one (unrelated) proprietary driver had no effect.

There is no hardware switch for the wifi. There's a keyboard switch for airplane mode, but it has no effect. Going into and out of airplane mode in network manager clears then refreshes the list of SSIDs, but does not fix the problem.

WiFi worked under the 14.04.02 and 14.10 Live CDs, and it can see the SSIDs under the 15.04 beta, so I conclude that it is on. For every SSID it lists the detected form of security, a plausible signal strength, "never used", plus the MAC address of wlan0. I might have expected to see the access point's MAC address there instead, but I don't recall seeing any MAC address there in previous releases so I'm not sure what to expect.

[Snowhog]

When you click on the wrench in Networkmanager (upper right corner), highlight the wireless SSID connection name and click Edit, is All users may connect to this network checked? In the Wireless Security tab, what Security is being used? Is Password filled in?