disconnected wireless, cannot reconnect (12.04)

Asked by Denis White on 2012-05-20

After disconnecting wireless connection I could not reconnect. I rebooted computer several times. I rebooted the wireless equipment (Comcast cable modem, Linksys VoIP phone adapter and router, Linksys WRT54GL router). The router's name is "capeblanco". Below are outputs from debugging commands listed in a forumpost. Thanks for any help.

> cat /etc/lsb-release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
Linux ub2 3.2.0-24-generic-pae #37-Ubuntu SMP Wed Apr 25 10:47:59 UTC 2012 i686 i686 i386 GNU/Linux
>
> lspci -nnk | grep -iA2 net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02)
 Subsystem: Hewlett-Packard Company Device [103c:2a6f]
 Kernel driver in use: r8169
>
> lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 093a:2700 Pixart Imaging, Inc.
Bus 002 Device 002: ID 15a9:0004 Gemtek WUBR-177G [Ralink RT2571W]
Bus 002 Device 003: ID 0bda:0111 Realtek Semiconductor Corp. Card Reader
Bus 002 Device 004: ID 050d:705a Belkin Components F5D7050 Wireless G Adapter v3000 [Ralink RT2571W]
Bus 004 Device 002: ID 046e:6000 Behavior Tech. Computer Corp.
>
> iwconfig
lo no wireless extensions.

wlan1 IEEE 802.11bg ESSID:"capeblanco"
          Mode:Ad-Hoc Frequency:2.412 GHz Cell: 96:14:25:22:6D:F9
          Tx-Power=20 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:on

wlan0 IEEE 802.11bg ESSID:off/any
          Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:on

eth0 no wireless extensions.

>
> rfkill list all
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: phy1: Wireless LAN
 Soft blocked: no
 Hard blocked: no
>
> lsmod
Module Size Used by
dm_crypt 22528 0
arc4 12473 4
rfcomm 38139 0
snd_hda_codec_realtek 174055 1
bnep 17830 2
parport_pc 32114 0
ppdev 12849 0
bluetooth 158438 10 rfcomm,bnep
snd_hda_intel 32765 3
snd_hda_codec 109562 2 snd_hda_codec_realtek,snd_hda_intel
binfmt_misc 17292 1
ip6t_LOG 16846 4
xt_hl 12465 6
snd_usb_audio 101566 1
rt73usb 27029 0
rt2x00usb 20061 1 rt73usb
ip6t_rt 12473 3
snd_pcm 80845 3 snd_hda_intel,snd_hda_codec,snd_usb_audio
snd_hwdep 13276 2 snd_hda_codec,snd_usb_audio
snd_usbmidi_lib 24603 1 snd_usb_audio
rt2x00lib 48858 2 rt73usb,rt2x00usb
nf_conntrack_ipv6 13581 7
nf_defrag_ipv6 13139 1 nf_conntrack_ipv6
snd_seq_midi 13132 0
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
ipt_REJECT 12512 1
mac80211 436455 2 rt2x00usb,rt2x00lib
snd_timer 28931 2 snd_pcm,snd_seq
xt_recent 17995 6
ipt_LOG 12783 5
snd_rawmidi 25424 2 snd_usbmidi_lib,snd_seq_midi
xt_limit 12541 12
xt_tcpudp 12531 36
cfg80211 178679 2 rt2x00lib,mac80211
uvcvideo 67203 0
videodev 86588 1 uvcvideo
snd_seq_device 14172 3 snd_seq_midi,snd_seq,snd_rawmidi
xt_addrtype 12596 4
xt_state 12514 20
psmouse 72919 0
serio_raw 13027 0
ip6table_filter 12711 1
snd 62064 19 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_pcm,snd_hwdep,snd_usbmidi_lib,snd_seq,snd_timer,snd_rawmidi,snd_seq_device
ip6_tables 22528 3 ip6t_LOG,ip6t_rt,ip6table_filter
nf_conntrack_netbios_ns 12585 0
nf_conntrack_broadcast 12541 1 nf_conntrack_netbios_ns
nf_nat_ftp 12595 0
nf_nat 24959 1 nf_nat_ftp
nf_conntrack_ipv4 19084 15 nf_nat
nf_defrag_ipv4 12649 1 nf_conntrack_ipv4
nf_conntrack_ftp 13183 1 nf_nat_ftp
nf_conntrack 73847 8 nf_conntrack_ipv6,xt_state,nf_conntrack_netbios_ns,nf_conntrack_broadcast,nf_nat_ftp,nf_nat,nf_conntrack_ipv4,nf_conntrack_ftp
iptable_filter 12706 1
joydev 17393 0
ip_tables 18106 1 iptable_filter
x_tables 21974 14 ip6t_LOG,xt_hl,ip6t_rt,ipt_REJECT,xt_recent,ipt_LOG,xt_limit,xt_tcpudp,xt_addrtype,xt_state,ip6table_filter,ip6_tables,iptable_filter,ip_tables
mac_hid 13077 0
firewire_sbp2 18346 0
soundcore 14635 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
usbhid 41906 0
hid 77367 1 usbhid
firewire_ohci 40172 0
firewire_core 56906 2 firewire_sbp2,firewire_ohci
crc_itu_t 12627 2 rt73usb,firewire_core
nouveau 712294 3
ttm 65344 1 nouveau
drm_kms_helper 45466 1 nouveau
drm 197692 5 nouveau,ttm,drm_kms_helper
r8169 56321 0
i2c_algo_bit 13199 1 nouveau
mxm_wmi 12859 1 nouveau
wmi 18744 1 mxm_wmi
video 19068 1 nouveau
usb_storage 39646 0
>
> nm-tool

NetworkManager Tool

State: connecting

- Device: wlan1 [capeblanco 1] ------------------------------------------------
  Type: 802.11 WiFi
  Driver: rt73usb
  State: connecting (getting IP configuration)
  Default: no
  HW Address: 00:17:3F:49:0F:76

  Capabilities:

  Wireless Properties
    WEP Encryption: yes
    WPA Encryption: yes
    WPA2 Encryption: yes

  Wireless Access Points
    Birkney: Infra, 10:9A:DD:8E:00:F3, Freq 2422 MHz, Rate 54 Mb/s, Strength 44 WPA2
    Parkretich: Infra, C8:3A:35:56:B9:28, Freq 2412 MHz, Rate 54 Mb/s, Strength 24 WPA2
    capeblanco: Infra, 68:7F:74:06:06:0D, Freq 2437 MHz, Rate 54 Mb/s, Strength 57 WEP
    WileyX2: Infra, 00:1E:E5:62:60:07, Freq 2437 MHz, Rate 54 Mb/s, Strength 27 WPA WPA2
    capeblanco: Ad-Hoc, AA:58:54:DF:4B:5B, Freq 2412 MHz, Rate 54 Mb/s, Strength 0 WEP
    capeblanco: Ad-Hoc, F6:1E:2F:2E:C9:EE, Freq 2412 MHz, Rate 54 Mb/s, Strength 0 WEP

- Device: wlan0 ----------------------------------------------------------------
  Type: 802.11 WiFi
  Driver: rt73usb
  State: disconnected
  Default: no
  HW Address: 00:22:5F:61:52:7C

  Capabilities:

  Wireless Properties
    WEP Encryption: yes
    WPA Encryption: yes
    WPA2 Encryption: yes

  Wireless Access Points
    capeblanco: Ad-Hoc, F6:1E:2F:2E:C9:EE, Freq 2412 MHz, Rate 54 Mb/s, Strength 37 WEP
    capeblanco: Ad-Hoc, 62:7E:CC:7D:EF:7E, Freq 2412 MHz, Rate 54 Mb/s, Strength 37 WEP
    capeblanco: Ad-Hoc, 96:14:25:22:6D:F9, Freq 2412 MHz, Rate 54 Mb/s, Strength 34 WEP

- Device: eth0 -----------------------------------------------------------------
  Type: Wired
  Driver: r8169
  State: unavailable
  Default: no
  HW Address: 00:24:8C:21:B0:42

  Capabilities:
    Carrier Detect: yes

  Wired Properties
    Carrier: off

>
> sudo iwlist scan
lo Interface doesn't support scanning.

wlan1 Scan completed :
          Cell 01 - Address: 68:7F:74:06:06:0D
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=44/70 Signal level=-66 dBm
                    Encryption key:on
                    ESSID:"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=00000000c20c9188
                    Extra: Last beacon: 856ms ago
                    IE: Unknown: 000A00000000000000000000
                    IE: Unknown: 010882848B9624B0486C
                    IE: Unknown: 030106
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: Unknown: 32048C129860
                    IE: Unknown: DD06001018020304
          Cell 02 - Address: C8:3A:35:56:B9:28
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=22/70 Signal level=-88 dBm
                    Encryption key:on
                    ESSID:"Parkretich"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000002fb76d6a172
                    Extra: Last beacon: 2312ms ago
                    IE: Unknown: 000A5061726B726574696368
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030101
                    IE: Unknown: 32040C183060
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 33082001020304050607
                    IE: Unknown: 33082105060708090A0B
                    IE: Unknown: DD270050F204104A0001101044000101104700102880288028801880A880C83A3556B928103C000101
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0104
                    IE: Unknown: 2D1A6E1117FF000000010000000000000000000000000C0000000000
                    IE: Unknown: 3D1601050700000000000000000000000000000000000000
                    IE: Unknown: 7F0101
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 0B05010014127A
                    IE: Unknown: DD1E00904C336E1117FF000000010000000000000000000000000C0000000000
                    IE: Unknown: DD1A00904C3401050700000000000000000000000000000000000000
                    IE: Unknown: DD07000C4304000000
          Cell 03 - Address: 10:9A:DD:8E:00:F3
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=34/70 Signal level=-76 dBm
                    Encryption key:on
                    ESSID:"Birkney"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000049fea6adfa2
                    Extra: Last beacon: 1048ms ago
                    IE: Unknown: 00074269726B6E6579
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030103
                    IE: Unknown: 0706555320010B1E
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101010003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0700039301720320
                    IE: Unknown: DD070017F203020180
                    IE: Unknown: DD0E0017F20700010106109ADD8E00F3
                    IE: Unknown: DD0B0017F20100010100000007
          Cell 04 - Address: 00:1E:E5:62:60:07
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=28/70 Signal level=-82 dBm
                    Encryption key:on
                    ESSID:"WileyX2"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000001cf3905d9c7
                    Extra: Last beacon: 828ms ago
                    IE: Unknown: 000757696C65795832
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD7E0050F204104A0001101044000102103B00010310470010138140001DD211B29FFFC67E816B4BFB102100074C696E6B73797310230006526F7574657210240007575254353447321042000C4353563031483333323836361054000800060050F204000110110011576972656C6573732D4720526F75746572100800020088
                    IE: Unknown: DD090010180202F4000000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
          Cell 05 - Address: 96:14:25:22:6D:F9
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70 Signal level=0 dBm
                    Encryption key:on
                    ESSID:"capeblanco"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Ad-Hoc
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 22128ms ago
                    IE: Unknown: 000A63617065626C616E636F
                    IE: Unknown: 010882040B160C121824
                    IE: Unknown: 030101
                    IE: Unknown: 06020000
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD070050F202000100

wlan0 Scan completed :
          Cell 01 - Address: 96:14:25:22:6D:F9
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=30/70 Signal level=-80 dBm
                    Encryption key:on
                    ESSID:"capeblanco"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Ad-Hoc
                    Extra:tsf=0000000000d2fa6a
                    Extra: Last beacon: 9576ms ago
                    IE: Unknown: 000A63617065626C616E636F
                    IE: Unknown: 010882040B160C121824
                    IE: Unknown: 030101
                    IE: Unknown: 06020000
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD070050F202000100

eth0 Interface doesn't support scanning.

>
> cat /var/lib/NetworkManager/NetworkManager.state

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
>
> sudo cat /var/log/syslog | grep -e ath -e firmware -e wpa -e wlan -e etork | tail -n55
May 20 08:37:02 ub2 NetworkManager[878]: <info> (wlan1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
May 20 08:37:02 ub2 NetworkManager[878]: <warn> Activation (wlan1) failed for access point (capeblanco)
May 20 08:37:02 ub2 NetworkManager[878]: <warn> Activation (wlan1) failed.
May 20 08:37:02 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 4 of 5 (IPv4 Configure Timeout) complete.
May 20 08:37:02 ub2 NetworkManager[878]: <info> (wlan1): device state change: failed -> disconnected (reason 'none') [120 30 0]
May 20 08:37:02 ub2 NetworkManager[878]: <info> (wlan1): deactivating device (reason 'none') [0]
May 20 08:37:02 ub2 NetworkManager[878]: <info> (wlan1): supplicant interface state: completed -> disconnected
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) starting connection 'capeblanco 1'
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): device state change: disconnected -> prepare (reason 'none') [30 40 0]
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) scheduled...
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) started...
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) scheduled...
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) complete.
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) starting...
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): device state change: prepare -> config (reason 'none') [40 50 0]
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1/wireless): access point 'capeblanco 1' has security, but secrets are required.
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): device state change: config -> need-auth (reason 'none') [50 60 0]
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) complete.
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) scheduled...
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) started...
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): device state change: need-auth -> prepare (reason 'none') [60 40 0]
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) scheduled...
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 1 of 5 (Device Prepare) complete.
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) starting...
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): device state change: prepare -> config (reason 'none') [40 50 0]
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1/wireless): connection 'capeblanco 1' has security, and secrets exist. No new secrets needed.
May 20 08:37:05 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 2 of 5 (Device Configure) complete.
May 20 08:37:05 ub2 wpa_supplicant[1184]: Trying to associate with SSID 'capeblanco'
May 20 08:37:05 ub2 NetworkManager[878]: <info> (wlan1): supplicant interface state: disconnected -> associating
May 20 08:37:05 ub2 kernel: [ 3050.058286] wlan1: Trigger new scan to find an IBSS to join
May 20 08:37:09 ub2 kernel: [ 3054.008016] wlan1: Trigger new scan to find an IBSS to join
May 20 08:37:13 ub2 kernel: [ 3057.982693] wlan1: Trigger new scan to find an IBSS to join
May 20 08:37:14 ub2 kernel: [ 3059.222552] wlan1: Creating new IBSS network, BSSID 96:14:25:22:6d:f9
May 20 08:37:14 ub2 wpa_supplicant[1184]: Associated with 96:14:25:22:6d:f9
May 20 08:37:14 ub2 wpa_supplicant[1184]: CTRL-EVENT-CONNECTED - Connection to 96:14:25:22:6d:f9 completed (reauth) [id=0 id_str=]
May 20 08:37:14 ub2 NetworkManager[878]: <info> (wlan1): supplicant interface state: associating -> completed
May 20 08:37:14 ub2 NetworkManager[878]: <info> Activation (wlan1/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'capeblanco'.
May 20 08:37:14 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 3 of 5 (IP Configure Start) scheduled.
May 20 08:37:14 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 3 of 5 (IP Configure Start) started...
May 20 08:37:14 ub2 NetworkManager[878]: <info> (wlan1): device state change: config -> ip-config (reason 'none') [50 70 0]
May 20 08:37:14 ub2 NetworkManager[878]: <info> Activation (wlan1) Beginning DHCPv4 transaction (timeout in 45 seconds)
May 20 08:37:14 ub2 NetworkManager[878]: <info> Activation (wlan1) Beginning IP6 addrconf.
May 20 08:37:15 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 3 of 5 (IP Configure Start) complete.
May 20 08:37:15 ub2 NetworkManager[878]: <info> (wlan1): DHCPv4 state changed nbi -> preinit
May 20 08:37:15 ub2 dhclient: Listening on LPF/wlan1/00:17:3f:49:0f:76
May 20 08:37:15 ub2 dhclient: Sending on LPF/wlan1/00:17:3f:49:0f:76
May 20 08:37:15 ub2 dhclient: DHCPDISCOVER on wlan1 to 255.255.255.255 port 67 interval 3
May 20 08:37:18 ub2 dhclient: DHCPDISCOVER on wlan1 to 255.255.255.255 port 67 interval 5
May 20 08:37:23 ub2 dhclient: DHCPDISCOVER on wlan1 to 255.255.255.255 port 67 interval 14
May 20 08:37:25 ub2 kernel: [ 3069.952009] wlan1: no IPv6 routers present
May 20 08:37:35 ub2 NetworkManager[878]: <info> (wlan1): IP6 addrconf timed out or failed.
May 20 08:37:35 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
May 20 08:37:35 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 4 of 5 (IPv6 Configure Timeout) started...
May 20 08:37:35 ub2 NetworkManager[878]: <info> Activation (wlan1) Stage 4 of 5 (IPv6 Configure Timeout) complete.
May 20 08:37:37 ub2 dhclient: DHCPDISCOVER on wlan1 to 255.255.255.255 port 67 interval 18
>

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu gnome-nettool Edit question
Assignee:
No assignee Edit question
Solved by:
Denis White
Solved:
2012-05-21
Last query:
2012-05-21
Last reply:
2012-05-21

Do you use 3G connectivity?

Denis White (capeblanco) said : #2

No, and my five year old Ubuntu laptop just upgraded to 12.04 now has the same problem.

Denis White (capeblanco) said : #3

Correction, I don't know for sure if I am using 3G connectivity. Is there a command that will find out?

If you have a USB dongle which youo PAY for to get data, you use 3G, sounds like you don't so we can do this.

Install wicd, then uninstall network-manager and reboot

Denis White (capeblanco) said : #5

Thanks, tomorrow I will see if I can connect my Ubuntu laptop by ethernet and get the package.

Denis White (capeblanco) said : #6

Solved by turning on ESSID broadcast at router. Sent in bug #1002450, "neither network-manager will connect to hidden network".

Could try wicd and uninstall network manager

Denis White (capeblanco) said : #8

I did that but that did not resolve connecting to a "hidden" network. Only when I turned on broadcast at the router could I connect. And that worked on the Gnome network manager also.