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Yesterday I installed Ubuntu 12.10 on my Dell studio 1537. All was fine until after a short time the WLAN connection stopped working and I was disconnected. The same thing happened when I re-installed Ubuntu. The network has stopped working and disappears from "network connections"

What can I do?

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Ok, first turn your router off and on again. If that doesn't help press Ctrl-Alt-t. A terminal will pop up, run:

sudo service network-manager restart

You'll be prompted for your password, as you type it in there's no feedback; that's normal. Press enter.

If that doesn't solve the issue, edit your question and post the output of the following terminal commands:

lspci -v | grep -iA 10 'network'


rfkill list all

sudo lshw -c network


min info for now:

lspci - v | grep -iA 10 'network': Device name after "Network controller:", "Kernel driver in use:", "Kernel Modules"

lsmod: check if the Kernel driver from lspci appears in the output

rfkill list all: For Wireless LAN does it say Soft blocked: yes or Hard blocked: yes, anywhere?

don't post that info in the comments below, but edit your question and post it there.

try this in the terminal:

sudo rmmod -f dell-laptop


sudo rfkill unblock all

rfkill list all

does it say "blabla blocked: yes" anywhere

check wifi connection again.

Report back

share|improve this answer
Router off/on is not working, next step too. – Yannick Feb 19 '13 at 13:04
And the Output for the other commands is "no such file or directory" on every line. – Yannick Feb 19 '13 at 13:06
I think I got the right Output, but can't post it with my phone.. – Yannick Feb 19 '13 at 13:11
those are 5 separate commands. Run them individually one after the other and make sure the spelling is right. The commands are case-sensitive so: grep -iA 'network' is different than grep -ia 'network' – phipsalabim Feb 19 '13 at 13:16
Ok what informations are important? Can't write all with my mobile phone – Yannick Feb 19 '13 at 13:20

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