The networkmanager connects at my place to BSSID none. None does not exists, so the connection is lost and restarted again, and again and again.
The relevant log is: <info> (wlan0): roamed from BSSID (none) ((none)) to 7C: (Zadel6) wpa_supplicant[1076]: wlan0: WPA: Key negotiation completed with 7c: [PTK=CCMP GTK=TKIP] wlan0: deauthenticated from 7c:(Reason: 15=4WAY_HANDSHAKE_TIMEOUT) wpa_supplicant[1076]: message repeated 6 times: [ wlan0: WPA: Key negotiation completed with 7c:[PTK=CCMP GTK=TKIP]] wpa_supplicant[1076]: wlan0: CTRL-EVENT-DISCONNECTED bssid=7c: reason=15 <warn> Connection disconnected (reason 15) By chance I found the cause. My Cisco router Firmware Version: epc3928a-E10-5-v302r125572-131030c-ZIG MAC Address: Current Time: Sat. Nov 22 11:42:30 2014 Router Mode: IPv4 has two bands 2,4 Ghz and 5Ghz, both with the same BSSID Zadel6. In this situation the networkmanager is switching from BSSID Zadel6 to none, none to none and none to Zadel6. If I disable one of the bands or give it a different BSSID, the switching disappears and the connection is not lost anymore. If it correct to conclude that the networkmanager is getting confused by the two bands on the same BSSID? ** Attachment added: "wireless-info.tar.gz" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/495981/+attachment/4265647/+files/wireless-info.tar.gz -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/495981 Title: NM disconnects Wi-Fi every 2 minutes but iwconfig+dhclient and wicd don't -- ath9k Status in “network-manager” package in Ubuntu: Confirmed Bug description: Binary package hint: network-manager I have Dell studio XPS 13 running: Description: Ubuntu 9.10 Release: 9.10 with wifi card (lspci): 06:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) that works (tries to) with ath9k module. It connects to my access point and works ok however, It disconnects every 2-3 min saying (in dmesg): [ 311.600306] wlan0: RX AssocResp from 00:1d:68:0c:97:63 (capab=0x411 status=0 aid=2) and then automatically reconnects... I have tried different drivers and other things.... Interestingly when I right-clicked on network manger applet, select ¨disable networking¨ and then set up everything myself on console using iwconfig and dhclient..... IT WORKS!!! no disconnections.... wpa_supplicant is still running in a background but not doing anything (my wifi has WEP encryption). I´ve seen some similar reports in Internet but they seem to think that it is a driver problem when to me it looks like a NetworkManager issue... Hope it helps.... drphd ProblemType: Bug Architecture: amd64 CRDA: Error: [Errno 2] No such file or directory Date: Sat Dec 12 19:42:18 2009 DistroRelease: Ubuntu 9.10 IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) IpRoute: 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.65 172.16.77.0/24 dev vmnet1 proto kernel scope link src 172.16.77.1 172.16.158.0/24 dev vmnet8 proto kernel scope link src 172.16.158.1 default via 192.168.1.254 dev wlan0 NonfreeKernelModules: nvidia Package: network-manager 0.8~a~git.20091013t193206.679d548-0ubuntu1 ProcEnviron: LANG=en_GB.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-16.53-generic SourcePackage: network-manager Uname: Linux 2.6.31-16-generic x86_64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/495981/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp