This problem started after upgrading to 12.04, an my system is 'up2date'

Have tried most of the solution-proposals found on the net.

lspci -nnk | grep -iA2 net

00:19.0 Ethernet controller [0200]: Intel Corporation 82567LF Gigabit Network Connection [8086:10bf] (rev 03)
        Subsystem: Lenovo Device [17aa:20ee]
        Kernel driver in use: e1000e
03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection [8086:4237]
        Subsystem: Intel Corporation WiFi Link 5100 AGN [8086:1211]
        Kernel driver in use: iwlagn


>lo        no wireless extensions.

>eth0      no wireless extensions.

>wlan0     IEEE 802.11abgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off

Encryption key:off
Power Management:off

sudo lshw -C network


description: Ethernet interface
product: 82567LF Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
serial: 00:22:68:1a:c4:75
size: 100Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.0.2-k2 duplex=full firmware=1.8-3 ip= latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:29 memory:fc000000-fc01ffff memory:fc024000-fc024fff ioport:1820(size=32)

*-network DISABLED
description: Wireless interface
product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 00
serial: 00:26:c6:6c:2d:24
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn latency=0 multicast=yes wireless=IEEE 802.11abgn
resources: irq:30 memory:f4300000-f4301fff

Please help

1 Answer 1

network DISABLED

Indicates your wireless radio killswitch is still active.


sudo rfkill list

to see what the current state is. "Soft blocked" can be unblocked using a command:

sudo rfkill unblock all

"Hard blocked" means you'll have to find the switch on your notebook to unlock it.

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