Network manager error

Asked by RA on 2011-08-03

Hi, after an update a week ago, my network manager does not allow me to connect to wireless networks or see them -- though it worked perfectly prior to that.

How can I fix my network manager? We've verified that the hardware "sees" the networks out there.

I get this warning message in the terminal:

nm-applet
An instance of nm-applet is already running.

** (nm-applet:3890): WARNING **: <WARN> constructor(): Couldn't initialize the D-Bus manager.

------------------------

Thanks! Hardwired ethernet is a drag.

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu network-manager-applet Edit question
Assignee:
No assignee Edit question
Solved by:
RA
Solved:
2011-08-06
Last query:
2011-08-06
Last reply:
2011-08-05

Kill nm-applet then rerun it.What is output?

RA (b-misc-j) said : #2

I don't know how to "kill" nm-applet sorry.

ok what is the outpupt of:

ps -ef | grep nm

Thanks

RA (b-misc-j) said : #4

root 776 1 0 11:19 ? 00:00:00 connmand -c
root 818 776 0 11:19 ? 00:00:00 /sbin/dhclient -d -q -e BUSNAME=org.moblin.connman -e BUSINTF=org.moblin.connman.Task -e BUSPATH=/task/0 -pf /var/run/connman/dhclient.eth0.pid -lf /var/run/connman/dhclient.eth0.leases -cf /usr/lib/connman/scripts/dhclient.conf -sf /usr/lib/connman/scripts/dhclient-script eth0 -n
username 1510 1413 0 11:19 ? 00:00:00 connman-applet
username 4647 4556 0 12:50 pts/2 00:00:00 grep --color=auto nm

so if you run:

sudo iwlist scan

Do you see networks ok? The command I gave doesn't seem to have shown nm-applet running. Can you also give the output of:

sudo lshw -C network; rfkill list

Thanks

RA (b-misc-j) said : #6

Yes, it sees all of the available networks.

The output of sudo lshw -C network; rfkill list
is

  *-network
       description: Ethernet interface
       product: AR8121/AR8113/AR8114 Gigabit or Fast Ethernet
       vendor: Atheros Communications
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: b0
       serial: 00:24:8c:a7:2c:04
       size: 100MB/s
       capacity: 100MB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=ATL1E driverversion=1.0.0.7-NAPI duplex=full firmware=L1e ip=192.168.1.4 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s
       resources: irq:45 memory:fbfc0000-fbffffff ioport:ec00(size=128)
  *-network
       description: Wireless interface
       product: RT2860
       vendor: RaLink
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: wlan0
       version: 00
       serial: 00:25:d3:14:c5:88
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=2.6.35-30-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:19 memory:fbef0000-fbefffff
0: eeepc-wlan: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: eeepc-bluetooth: Bluetooth
 Soft blocked: yes
 Hard blocked: no
2: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

Thanks

I've uninstalled and reinstalled network manager 3 or 4 times and that hasn't helped.

Ok if you run:

sudo iwlist scan

Do you see wireless access points?

RA (b-misc-j) said : #8

yes.

lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wlan0 Scan completed :
          Cell 01 - Address: 00:1F:90:EB:20:04
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=70/70 Signal level=24 dBm
                    Encryption key:on
                    ESSID:"47OW1"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 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=0000004c06fda6cc
                    Extra: Last beacon: 448ms ago
                    IE: Unknown: 000534374F5731
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706555320010B1B
                    IE: Unknown: 200100
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
          Cell 02 - Address: 00:26:62:79:12:BE
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=70/70 Signal level=-184 dBm
                    Encryption key:on
                    ESSID:"XE2Q4"
                    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=0000006b3f9f9f4b
                    Extra: Last beacon: 748ms ago
                    IE: Unknown: 00055845325134
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030106
                    IE: Unknown: 200100
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
                    IE: Unknown: 2D1A8C131BFF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D1606001B00000000000000000000000000000000000000
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: Unknown: DD0A00037F04010020000000
                    IE: Unknown: 0706555320010B1B
          Cell 03 - Address: 00:1D:CD:E2:BA:EC
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70 Signal level=-182 dBm
                    Encryption key:on
                    ESSID:"HOME-BAEE"
                    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=0000048eb4fa417d
                    Extra: Last beacon: 1096ms ago
                    IE: Unknown: 0009484F4D452D42414545
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0104
                    IE: Unknown: 32040C183060
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
                    IE: Unknown: 0B05010007127A
                    IE: Unknown: DD07000C4307000000
                    IE: Unknown: DD07000C4307000000
                    IE: Unknown: DD07000C4307000000
                    IE: Unknown: 0706555320010B10
                    IE: Unknown: DD7C0050F204104A0001101044000102103B000103104700102880288028801880A880001DCDE2BAEC102100054152524953102300055447383532102400065254323836301042000831323334353637381054000800060050F204000110110012415252495320544738353220526F75746572100800020084103C000101
          Cell 04 - Address: 00:18:01:FE:3D:00
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=70/70 Signal level=57 dBm
                    Encryption key:on
                    ESSID:"ZVNL7"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 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=0000054f6437b682
                    Extra: Last beacon: 760ms ago
                    IE: Unknown: 00055A564E4C37
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 030106
                    IE: Unknown: 0706555320010B1B
                    IE: Unknown: 200100
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
          Cell 05 - Address: 00:23:69:8B:B5:8F
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70 Signal level=-181 dBm
                    Encryption key:off
                    ESSID:"WHSD"
                    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=000000141b6eac29
                    Extra: Last beacon: 1080ms ago
                    IE: Unknown: 000457485344
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD06001018020104
          Cell 06 - Address: 00:18:01:E2:10:36
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=70/70 Signal level=-182 dBm
                    Encryption key:on
                    ESSID:"CJ0N8"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000041066b9a0c
                    Extra: Last beacon: 748ms ago
                    IE: Unknown: 0005434A304E38
                    IE: Unknown: 010482848B96
                    IE: Unknown: 030106
                    IE: Unknown: 2A0104
                    IE: Unknown: 32080C1218243048606C
          Cell 07 - Address: 00:23:97:D9:D1:B4
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=70/70 Signal level=-182 dBm
                    Encryption key:on
                    ESSID:"10FX03006270"
                    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=00000121d000573f
                    Extra: Last beacon: 764ms ago
                    IE: Unknown: 000C313046583033303036323730
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD090010180200F0000000
          Cell 08 - Address: 00:26:62:EA:DC:1C
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=70/70 Signal level=-182 dBm
                    Encryption key:on
                    ESSID:"290P1"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 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=000000966a5a930c
                    Extra: Last beacon: 444ms ago
                    IE: Unknown: 00053239305031
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706555320010B1B
                    IE: Unknown: 200100
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD0900037F010100200000

virbr0 Interface doesn't support scanning.

Michael Evans (mjevans1983) said : #9

I have a similar issue on my my nettop (eee901); I'm using oneiric because I want the latest kernel and btrfs support.

The issue in my case seems to be that nm-applet can't connect to dbus (privilege issue?)

Things that might be different in my case from typical ubuntu:

oneiric
btrfs (/ and /home)
lxde (lbuntu)

there is btrfs in Natty too..

Have you tried installing wicd and removing network manager?

RA (b-misc-j) said : #11

wicd didn't allow me to log-in no matter how many times I tried the correct password.

I uninstalled ALL network applications on the computer completely, rebooted and installed Network Manager, and it worked as if nothing had ever been wrong -- not even asking for a local password to the server. I thought I already tried that a few times. In fact, I'm sure I did. Oh well...

Thanks, it works now.

:)