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] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 25.134956] wlan0: authenticate with 08:96:d7:9d:f6:a1 [ 25.140117] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 1/3) [ 25.344117] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 2/3) [ 25.548054] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 3/3) [ 25.752042] wlan0: authentication with 08:96:d7:9d:f6:a1 timed out [ 25.788271] wlan0: authenticate with 08:96:d7:9d:f6:a1 [ 25.788350] wlan0: direct probe to 08:96:d7:9d:f6:a1 (try 1/3) [ 25.992035] wlan0: direct probe to 08:96:d7:9d:f6:a1 (try 2/3) [ 26.196113] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 3/3) [ 26.206550] wlan0: authenticated [ 26.208048] wlan0: associate with 08:96:d7:9d:f6:a1 (try 1/3) [ 26.233139] wlan0: RX AssocResp from 08:96:d7:9d:f6:a1 (capab=0x431 status=0 aid=11) [ 26.242102] wlan0: associated [ 26.242180] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 30.274822] wlan0: disassociated from 08:96:d7:9d:f6:a1 (Reason: 2) [ 30.328236] wlan0: deauthenticating from 08:96:d7:9d:f6:a1 by local choice (reason=3) [ 72.204524] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3035.874583] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 3042.166018] wlan0: authenticate with 08:96:d7:9d:f6:a1 [ 3042.176186] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 1/3) [ 3042.181177] wlan0: authenticated [ 3042.184129] wlan0: associate with 08:96:d7:9d:f6:a1 (try 1/3) [ 3042.207339] wlan0: RX AssocResp from 08:96:d7:9d:f6:a1 (capab=0x431 status=0 aid=12) [ 3042.209730] wlan0: associated [ 3042.209761] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 3042.229302] wlan0: deauthenticating from 08:96:d7:9d:f6:a1 by local choice (reason=2) [ 3042.278931] wlan0: authenticate with 08:96:d7:9d:f6:a1 [ 3042.279005] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 1/3) [ 3042.285993] wlan0: authenticated [ 3042.288104] wlan0: associate with 08:96:d7:9d:f6:a1 (try 1/3) [ 3042.308969] wlan0: RX AssocResp from 08:96:d7:9d:f6:a1 (capab=0x431 status=0 aid=12) [ 3042.310585] wlan0: associated [ 3074.316071] ieee80211 phy0: wlan0: No probe response from AP 08:96:d7:9d:f6:a1 after 500ms, disconnecting. [ 3077.546352] wlan0: authenticate with 08:96:d7:9d:f6:a1 [ 3077.552140] wlan0: send auth to 08:96:d7:9d:f6:a1 (try 1/3) [ 3077.571165] wlan0: authenticated [ 3077.572104] wlan0: associate with 08:96:d7:9d:f6:a1 (try 1/3) [ 3077.762850] wlan0: RX AssocResp from 08:96:d7:9d:f6:a1 (capab=0x431 status=0 aid=12) [ 3077.781197] wlan0: associated ** Summary changed: - [Kubuntu 14.10] Network manager stops working: iwl3945 0000:03:00.0: BSM uCode verification failed at addr ...; wlan0: deauthenticating from... by local choice (Reason: 3=DEAUTH_LEAVING), + [Kubuntu 14.04 and 14.10] Network manager stops working: iwl3945 0000:03:00.0: BSM uCode verification failed at addr ...; wlan0: deauthenticating from... by local choice (Reason: 3=DEAUTH_LEAVING), -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1408963 Title: [Kubuntu 14.04 and 14.10] Network manager stops working: iwl3945 0000:03:00.0: BSM uCode verification failed at addr ...; wlan0: deauthenticating from... by local choice (Reason: 3=DEAUTH_LEAVING), Status in linux-firmware package in Ubuntu: Confirmed Status in network-manager package in Ubuntu: Confirmed Bug description: From time to time, the system loses all wireles networks and kubuntu network manager applet goes blank - not even one network is shown. All wifi connections are broken. Rebooting fixes the issue, switching to WICD on-the-fly enables to continue browsing without rebooting, so it seems to be no hardware issue or iwl3945 issue. What to expect: stable connections and flawless network managing. What happens: so above. Further informations about the system, the network configuration, the package version can be found in the attachment, also parts of rsyslog and dmesg. Interesting, according to some helpers, are the following lines: dmesg: wlan0: deauthenticating from 02:26:4d:ac:8f:45 by local choice (Reason: 3=DEAUTH_LEAVING) lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.10 Release: 14.10 Codename: utopic apt-cache policy network-manager network-manager: Installiert: 0.9.8.8-0ubuntu28 Installationskandidat: 0.9.8.8-0ubuntu28 Versionstabelle: *** 0.9.8.8-0ubuntu28 0 500 http://de.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1408963/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
