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After system update wireless connection is completely ruined. The 'enable wireless' option is no more visible.

This is what lshw is yielding.I followed the troubleshooting guide here: https://help.ubuntu.com/community/WifiDocs/WirelessTroubleShootingGuide, but in vain.

sudo lshw -c network
  *-network               
       description: Ethernet interface
       product: Ethernet Connection I218-LM
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 04
       serial: ec:f4:bb:13:4e:94
       size: 10Mbit/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=2.3.2-k duplex=full firmware=0.6-3 ip=10.100.10.57 latency=0 link=yes multicast=yes port=twisted pair speed=10Mbit/s
       resources: irq:60 memory:f7c00000-f7c1ffff memory:f7c3c000-f7c3cfff ioport:f080(size=32)

The hardware switch is on and getting detected.

rfkill list 

0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
4: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

Rgds, Anirban

Huygens
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Anirban Dutta Choudhury
  • 21

1 Answers1

0

I will make the assumption that you have a centrino platform (so an Intel wifi card).
Note: from Dell website, it is possible that this is not the case, depending on the exact configuration you choose for your model.

Then try to load the Intel Wireless driver (module):

sudo modprobe iwlwifi

Now perform again the command sudo lshw -c network.

Do you see the WiFi card now listed?

if yes, add the module to /etc/modules (you can do like this: sudo bash "echo iwlwifi >> /etc/modules) so that on next reboot the module will be automatically loaded.

Huygens
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