hi
i have a serious problem: i am running ubuntu 10.04 and suddenly the wifi network to which i am connected is not shown on my laptop. I can't connect meanwhile my colleagues connect. Where is the poblem comes from ?
 
 
 
 
 
 
 
 
 
 
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22 Jun 11
hi
i have a serious problem: i am running ubuntu 10.04 and suddenly the wifi network to which i am connected is not shown on my laptop. I can't connect meanwhile my colleagues connect. Where is the poblem comes from ?
22 Jun 11
Many laptops have a toggle switch which turns wifi access on and off, have you checked to see if somehow it was toggled off?
22 Jun 11
thank you very much for your kind answer, CoinEasy9, but when I restart my laptop and log into my windows operating system I connect without any problem.
when i restart and log into my ubuntu on the same laptop, no connexion wifi is detected even if i have always connected through ubuntu. Suddenly, for no reason I can't connect. Except I remember I updated some tools that ubuntu asked me on the morning. Afternoon I was not able to connect
When I tape ifconfig on the terminal of ubuntu it shows my ip as: 127.0.0.1
when I ping a website it says it is an invalid address
help me please
22 Jun 11
begueradj wrote:
thank you very much for your kind answer, CoinEasy9, but when I restart my laptop and log into my windows operating system I connect without any problem.
when i restart and log into my ubuntu on the same laptop, no connexion wifi is detected even if i have always connected through ubuntu. Suddenly, for no reason I can't connect. Except I remember I updated some tools that ubuntu asked me on the morning. Afternoon I was not able to connect
When I tape ifconfig on the terminal of ubuntu it shows my ip as: 127.0.0.1
when I ping a website it says it is an invalid address
help me please
Check
dmesg
iwconfig
/var/log/messages
We might be able to get some information from there :)
Regards
PS: 127.0.0.1 is the "loopback" ip, to connect to your own machine. That's not gonna get you to internet in anyway :S
25 Jun 11
Try to run this command...
sudo rm -f /var/lib/NetworkManager/NetworkManager.state
... and reboot
27 Jun 11
Your wireless controller may have become faulty after the update. Bad driver perhaps. Run this command:
#sudo lshw
or
#sudo lspci -v, "this will give you the driver of the device"
and look for your wireless device model. If found, try to install the driver again.
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