I also experience this bug on karmic using an intel BCM4311 wireless card. Same issue, the wireless connection is randomly reset every 5 - 10 minutes. I've tried the various wireless drivers for my chipset, and all except ndiswrapper have this problem. I also tried the upstream linux modules with the same effect. In the system log, I get this message at the time of the reset:
Sep 22 17:11:01 jacob-laptop NetworkManager: <info> Wireless now disabled by radio killswitch Sep 22 17:11:01 jacob-laptop NetworkManager: <info> (wlan0): device state change: 8 -> 2 (reason 0) Sep 22 17:11:01 jacob-laptop NetworkManager: <info> (wlan0): deactivating device (reason: 0). Sep 22 17:11:01 jacob-laptop NetworkManager: <info> (wlan0): canceled DHCP transaction, dhcp client pid 2715 Sep 22 17:11:01 jacob-laptop NetworkManager: <WARN> check_one_route(): (wlan0) error -34 returned from rtnl_route_del(): Sucess#012 Sep 22 17:11:01 jacob-laptop NetworkManager: <info> (wlan0): taking down device. Sep 22 17:11:01 jacob-laptop wpa_supplicant[1580]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys Sep 22 17:11:02 jacob-laptop NetworkManager: <info> Wireless now enabled by radio killswitch Sep 22 17:11:02 jacob-laptop NetworkManager: <info> (wlan0): bringing up device. Sep 22 17:11:02 jacob-laptop NetworkManager: <info> (wlan0): device state change: 2 -> 3 (reason 0) Sep 22 17:11:02 jacob-laptop NetworkManager: <info> (wlan0): supplicant interface state: starting -> ready dmesg also gives me this message: [ 852.116129] wlan0: associated [ 1329.237592] wlan0: deauthenticating by local choice (reason=3) [ 1330.160107] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10) [ 1330.240907] Registered led device: b43-phy0::tx [ 1330.241646] Registered led device: b43-phy0::rx [ 1330.242285] Registered led device: b43-phy0::radio [ 1330.252921] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1330.264413] wlan0: direct probe to AP 00:16:9d:cd:84:f0 try 1 [ 1330.464098] wlan0: direct probe to AP 00:16:9d:cd:84:f0 try 2 [ 1330.465190] wlan0 direct probe responded [ 1330.465193] wlan0: authenticate with AP 00:16:9d:cd:84:f0 [ 1330.467201] wlan0: authenticated I don't know what else I should attach... -- [Karmic] Intel Pro/Wireless 3945BG (driver: iwl3945) disconnects frequently at random https://bugs.launchpad.net/bugs/429035 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs