Gone back to 14.04 due multiple reasons, as Helio wrote: same here:
uname -a
Linux sitronen-T500 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux
dmesg | frep wlan[ 10.789417] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not
ready
[ 10.789706]
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-firmware (Ubuntu)
Status: New = Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New = Confirmed
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https://bugs.launchpad.net/bugs/1408963
I just forgot to mention it isn't probably related to wifi interface
since I've an Intel 6235 instead (kernel module iwlwifi).
5c:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235
(rev 24)
I'm running on top o kernel 3.17.7.
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This happens to me on 14.04 as well.
If I stop network-manager and connect directly via wpa_supplicant to
wireless router, it just works.
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https://bugs.launchpad.net/bugs/1408963
Title:
sudo service wicd stopsudo modprobe -rfv iwl3945sudo modprobe -v
iwl3945sudo service wicd start seems to work if the eoor occurs.
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Title:
Some guy try to help me with this error. Further information and
progress can be found at http://forum.ubuntuusers.de/topic/iwlwifi-
streckt-die-fluegel-nach-wlan0-failed-/
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Switching to WICD solves the problem only temporaly. The Wifi brakes
again with the error
iwl3945 :03:00.0: BSM uCode verification failed at addr
** Also affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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** Summary changed:
- [Kubuntu 14.10] Network manager stops working: wlan0: deauthenticating
from... by local choice (Reason: 3=DEAUTH_LEAVING)
+ [Kubuntu 14.10] Network manager stops working: iwl3945 :03:00.0: BSM
uCode verification failed at addr ...; wlan0: deauthenticating from... by
