I just got a disconnection, here is what syslog has to say about it: Apr 30 12:53:06 thibauld-desktop wpa_supplicant[815]: message repeated 47 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ] Apr 30 12:54:54 thibauld-desktop wpa_supplicant[815]: wlan0: CTRL-EVENT-DISCONNECTED bssid=cc:35:40:57:80:e1 reason=4 locally_generated=1 Apr 30 12:54:54 thibauld-desktop NetworkManager[699]: <warn> Connection disconnected (reason -4) Apr 30 12:54:54 thibauld-desktop kernel: [14259.692842] cfg80211: Calling CRDA to update world regulatory domain Apr 30 12:54:54 thibauld-desktop kernel: [14259.695285] cfg80211: World regulatory domain updated: Apr 30 12:54:54 thibauld-desktop kernel: [14259.695288] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Apr 30 12:54:54 thibauld-desktop kernel: [14259.695290] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Apr 30 12:54:54 thibauld-desktop kernel: [14259.695292] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Apr 30 12:54:54 thibauld-desktop kernel: [14259.695293] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Apr 30 12:54:54 thibauld-desktop kernel: [14259.695294] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Apr 30 12:54:54 thibauld-desktop kernel: [14259.695295] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Apr 30 12:54:54 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: completed -> disconnected Apr 30 12:54:54 thibauld-desktop wpa_supplicant[815]: wlan0: CTRL-EVENT-SCAN-STARTED Apr 30 12:54:54 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: disconnected -> scanning Apr 30 12:54:58 thibauld-desktop wpa_supplicant[815]: wlan0: SME: Trying to authenticate with cc:35:40:57:80:e1 (SSID='Math Network' freq=2462 MHz) Apr 30 12:54:58 thibauld-desktop kernel: [14263.454497] wlan0: authenticate with cc:35:40:57:80:e1 Apr 30 12:54:58 thibauld-desktop kernel: [14263.456106] wlan0: send auth to cc:35:40:57:80:e1 (try 1/3) Apr 30 12:54:58 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: scanning -> authenticating Apr 30 12:54:58 thibauld-desktop wpa_supplicant[815]: wlan0: Trying to associate with cc:35:40:57:80:e1 (SSID='Math Network' freq=2462 MHz) Apr 30 12:54:58 thibauld-desktop kernel: [14263.460143] wlan0: authenticated Apr 30 12:54:58 thibauld-desktop kernel: [14263.463419] wlan0: associate with cc:35:40:57:80:e1 (try 1/3) Apr 30 12:54:58 thibauld-desktop kernel: [14263.466334] wlan0: RX AssocResp from cc:35:40:57:80:e1 (capab=0x411 status=0 aid=5) Apr 30 12:54:58 thibauld-desktop kernel: [14263.467056] wlan0: associated Apr 30 12:54:58 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: authenticating -> associating Apr 30 12:54:58 thibauld-desktop wpa_supplicant[815]: wlan0: Associated with cc:35:40:57:80:e1 Apr 30 12:54:58 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: associating -> associated Apr 30 12:54:58 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake Apr 30 12:54:59 thibauld-desktop wpa_supplicant[815]: wlan0: WPA: Key negotiation completed with cc:35:40:57:80:e1 [PTK=CCMP GTK=TKIP] Apr 30 12:54:59 thibauld-desktop wpa_supplicant[815]: wlan0: CTRL-EVENT-CONNECTED - Connection to cc:35:40:57:80:e1 completed [id=0 id_str=] Apr 30 12:54:59 thibauld-desktop NetworkManager[699]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed Apr 30 12:55:06 thibauld-desktop wpa_supplicant[815]: wlan0: CTRL-EVENT-SCAN-STARTED Apr 30 12:57:40 thibauld-desktop dbus[616]: [system] Activating service name='org.debian.apt' (using servicehelper) Apr 30 12:57:40 thibauld-desktop AptDaemon: INFO: Initializing daemon Apr 30 12:57:40 thibauld-desktop dbus[616]: [system] Successfully activated service 'org.debian.apt' Apr 30 12:57:40 thibauld-desktop AptDaemon.PackageKit: INFO: Initializing PackageKit compat layer Apr 30 12:58:48 thibauld-desktop dbus[616]: [system] Activating service name='org.debian.AptXapianIndex' (using servicehelper) Apr 30 12:58:48 thibauld-desktop dbus[616]: [system] Successfully activated service 'org.debian.AptXapianIndex'
Hope this helps! PS: I forgot to say in my previous comment that my Ubuntu 14.04 runs on a 4th Gen NUC Core i5-4250U D54250WYK -- 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/1293569 Title: iwlwifi-7260-8.ucode causes network disconnections problems Status in “linux-firmware” package in Ubuntu: Confirmed Bug description: Running 14.04 (beta) with Kernel 3.13.0-17-generic I've encountered a strange and reproducible error with the iwlwifi-7260-8.ucode firmware. This laptop is a Dell XPS 12 (haswell). With the -8 firmware, it will connect fine to wifi for 30 or 40 mins at a time, then will start dropping connections repeatedly. Even modprobe -r unloading and reloading doesn't fix the issue, only a reboot will temporarily solve it for 40 mins at a time. Moreover, here is what's strange, is during these episodes of disconnection it seems to affect the actual router (2Wire), as the other devices in the house will also start to have issues (very slow connections, limited range,etc). Once I reboot this laptop everything and all devices will return to normal. This issue has been fixed by me manually removing the -8 firware from /lib/firmware and letting the -7 firmware load instead. Since that has been done there has not been a single issue of this happening (now going on 4 days). let me know if there is any other information you would like me to provide. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-firmware 1.126 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Mon Mar 17 08:13:25 2014 Dependencies: EcryptfsInUse: Yes InstallationDate: Installed on 2014-03-07 (9 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140307) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1293569/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp