Hello all,
This is quite a common problem, it seems from the number of posts on the topic on here in this forum and elsewhere. To cut a long story short,
- My Ubuntu 12.04-based laptop has stopped recognising the Belkin N150 router, all of sudden a couple of weeks back.
- My wife's netbook works with the same router unchanged. So, it is unlikely to be a problem with the router.
- I have been using 'wicd' without any trouble for almost an year now. However, now 'wicd' catches signals from the routers of my neighbours
, but is blissfully unaware of the router in my residence. - I searched and experimented (spent an awful number of hours) with advices given on a number of such posts but of no avail.
Being used to wireless networking on Ubuntu and then, having to live without it is a great source of irritation and impatience. Can someone please point me out to the right direction? What mistake I am making?
Here are the necessary information (anything else needed, please let me know):
My Machine: Samsung Laptop RV 409
My Env:
(uname -a):
Linux Solomon 3.2.0-34-generic #53-Ubuntu SMP Thu Nov 15 10:49:02 UTC 2012 i686 i686 i386 GNU/Linux
(lsb_modules -a):
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
Contents of /etc/network/interfaces:
Code:
auto lo
iface lo inet loopback
#auto dsl-provider
#iface dsl-provider inet ppp
#pre-up /sbin/ifconfig eth0 up # line maintained by pppoeconf
#provider dsl-provider
auto eth0
iface eth0 inet manual
Output of ifconfig (right now):
Code:
eth0 Link encap:Ethernet HWaddr e8:11:32:48:26:d5
inet6 addr: fe80::ea11:32ff:fe48:26d5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:19096 errors:0 dropped:0 overruns:0 frame:0
TX packets:18095 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15094642 (15.0 MB) TX bytes:2806957 (2.8 MB)
Interrupt:41 Base address:0x8000
eth1 Link encap:Ethernet HWaddr b4:74:9f:83:b5:94
inet6 addr: fe80::b674:9fff:fe83:b594/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:13670
TX packets:0 errors:26 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:275 errors:0 dropped:0 overruns:0 frame:0
TX packets:275 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:18218 (18.2 KB) TX bytes:18218 (18.2 KB)
Output of lshw -C network:
Code:
*-network
description: Wireless interface
product: BCM4313 802.11b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth1
version: 01
serial: b4:74:9f:83:b5:94
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:16 memory:fc500000-fc503fff
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 06
serial: e8:11:32:48:26:d5
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:41 ioport:3000(size=256) memory:fc900000-fc900fff memory:fca04000-fca07fff
Output of lsmod | grep b43:
Code:
b43 342643 0
mac80211 436455 1 b43
cfg80211 178679 2 b43,mac80211
bcma 25651 1 b43
ssb 50691 1 b43
Output of lspci -nn | grep 0280:
Code:
02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
Output of rfkill list all:
Code:
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
Contents of /etc/wpa_supplicant.conf:
Code:
ap_scan=1
network={
ssid=<Name given by me>
psk=<Password given by me>
}
Output of nm-tool:
Code:
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unmanaged
Default: no
HW Address: E8:11:32:48:26:D5
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
- Device: eth1 -----------------------------------------------------------------
Type: 802.11 WiFi
Driver: wl
State: disconnected
Default: no
HW Address: B4:74:9F:83:B5:94
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
<XXXXXX1>: Infra, 00:24:82:26:59:68, Freq 2412 MHz, Rate 0 Mb/s, Strength 29
<XXXXXX2>: Infra, 00:25:9C:18:6B:0C, Freq 2422 MHz, Rate 0 Mb/s, Strength 12 WPA WPA2
<XXXXX3>: Infra, B8:A3:86:2E:8E:5E, Freq 2462 MHz, Rate 0 Mb/s, Strength 25 WPA WPA2
Please note: None of the above-mentioned XXXXX9 values contains the SSID name that I had set in '/etc/wpa_supplicant.conf' file, referred to before in this post.
Output of iwconfig:
Code:
ppp0 no wireless extensions.
lo no wireless extensions.
eth1 IEEE 802.11 ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Bit Rate:72 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=5/5 Signal level=0 dBm Noise level=-95 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
Output of iwspy:
Code:
ppp0 Interface doesn't support wireless statistic collection
lo Interface doesn't support wireless statistic collection
eth1 No statistics to collect
eth0 Interface doesn't support wireless statistic collection
Not sure if this is going to be useful, but just in case -->
Output of 'cat /var/log/syslog | grep -e wl -e firmware -e wpa -e eth1 -e etork | tail -n55':
Code:
Dec 10 07:47:57 Solomon vnstatd[1695]: Monitoring: eth1 eth0
Dec 10 07:47:57 Solomon vnstatd[1695]: Error: Unable to get interface "eth1" statistics.
Dec 10 07:47:57 Solomon vnstatd[1695]: Interface "eth1" not available, disabling.
Dec 10 07:52:31 Solomon kernel: [ 21.645520] wl: module license 'MIXED/Proprietary' taints kernel.
Dec 10 07:52:31 Solomon kernel: [ 21.654366] wl 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Dec 10 07:52:31 Solomon kernel: [ 21.654375] wl 0000:02:00.0: setting latency timer to 64
Dec 10 07:52:31 Solomon kernel: [ 21.798201] eth1: Broadcom BCM4727 802.11 Hybrid Wireless Controller 5.100.82.38
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): driver supports SSID scans (scan_capa 0x01).
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): using WEXT for WiFi device control
Dec 10 07:52:32 Solomon NetworkManager[924]: <error> [1355106152.46792] [nm-device-wifi.c:2591] real_update_permanent_hw_address(): (eth1): unable to read permanent MAC address (error 0)
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): new 802.11 WiFi device (driver: 'wl' ifindex: 3)
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): exported as /org/freedesktop/NetworkManager/Devices/0
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): now managed
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): bringing up device.
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): preparing device.
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): deactivating device (reason 'managed') [2]
Dec 10 07:52:32 Solomon dbus[886]: [system] Activating service name='fi.w1.wpa_supplicant1' (using servicehelper)
Dec 10 07:52:32 Solomon dbus[886]: [system] Successfully activated service 'fi.w1.wpa_supplicant1'
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> wpa_supplicant started
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): supplicant interface state: starting -> ready
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
Dec 10 07:52:32 Solomon NetworkManager[924]: <info> (eth1): supplicant interface state: ready -> inactive
Dec 10 07:52:35 Solomon vnstatd[1661]: Monitoring: eth1 eth0
Dec 10 07:52:40 Solomon vnstatd[1661]: Interface "eth1" enabled.
Dec 10 08:02:18 Solomon kernel: [ 21.414315] wl: module license 'MIXED/Proprietary' taints kernel.
Dec 10 08:02:18 Solomon kernel: [ 21.429825] wl 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Dec 10 08:02:18 Solomon kernel: [ 21.429836] wl 0000:02:00.0: setting latency timer to 64
Dec 10 08:02:18 Solomon kernel: [ 21.543937] eth1: Broadcom BCM4727 802.11 Hybrid Wireless Controller 5.100.82.38
Dec 10 08:02:18 Solomon NetworkManager[970]: SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/eth1, iface: eth1)
Dec 10 08:02:18 Solomon NetworkManager[970]: SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/eth1, iface: eth1): no ifupdown configuration found.
Dec 10 08:02:18 Solomon NetworkManager[970]: <info> monitoring kernel firmware directory '/lib/firmware'.
Dec 10 08:02:18 Solomon NetworkManager[970]: <info> found WiFi radio killswitch rfkill0 (at /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/eth1/rfkill0) (driver (unknown))
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): driver supports SSID scans (scan_capa 0x01).
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): using WEXT for WiFi device control
Dec 10 08:02:19 Solomon NetworkManager[970]: <error> [1355106739.13015] [nm-device-wifi.c:2591] real_update_permanent_hw_address(): (eth1): unable to read permanent MAC address (error 0)
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): new 802.11 WiFi device (driver: 'wl' ifindex: 3)
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): exported as /org/freedesktop/NetworkManager/Devices/0
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): now managed
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): bringing up device.
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): preparing device.
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): deactivating device (reason 'managed') [2]
Dec 10 08:02:19 Solomon dbus[917]: [system] Activating service name='fi.w1.wpa_supplicant1' (using servicehelper)
Dec 10 08:02:19 Solomon dbus[917]: [system] Successfully activated service 'fi.w1.wpa_supplicant1'
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> wpa_supplicant started
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): supplicant interface state: starting -> ready
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
Dec 10 08:02:19 Solomon NetworkManager[970]: <info> (eth1): supplicant interface state: ready -> inactive
Dec 10 08:02:20 Solomon avahi-daemon[981]: Joining mDNS multicast group on interface eth1.IPv6 with address fe80::b674:9fff:fe83:b594.
Dec 10 08:02:20 Solomon avahi-daemon[981]: New relevant interface eth1.IPv6 for mDNS.
Dec 10 08:02:20 Solomon avahi-daemon[981]: Registering new address record for fe80::b674:9fff:fe83:b594 on eth1.*.
Dec 10 08:02:21 Solomon vnstatd[1692]: Monitoring: eth1 eth0
I had installed 'b43fwcutter' through synaptic.
I tried to install 'firmware-b43-lpphy' too, but was left with a reassurance:
Output of apt-get install firmware-b43-lpphy-installer:
Code:
Reading package lists... Done
Building dependency tree
Reading state information... Done
firmware-b43-lpphy-installer is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
Any other information, I am just a mail away.
Any help will be appreciated wholeheartedly. I am quite OK with linux command line tools. So, feel free to ask me to run any command and I will share the output, if that helps you.
Let us nail this problem down. This is causing a lot of heartburn around in the Ubuntu circles. We can't possibly ask anyone to keep working with wired connection till this is solved. This is caused by a recent update for sure, and we will have to provide a fix ASAP. The world isn't going to wait for us. 
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