problem connecting to internet wireless

Patton Echols p.echols at comcast.net
Mon Feb 9 01:22:18 UTC 2009


On 02/05/2009 05:04 AM, Gary Kirkpatrick wrote:
> I have an Intel Pro Wireless Lan 2100 3a Mini PCI adapter. I have been 
> able to connect to the internet. After an Ubuntu Hardy update 
> yesterday I can no longer connect except in Windows. My router shows 
> up in the list and Ubuntu seems to be trying to connect to it but 
> fails to do so. When I edit the connection there is an incorrect 
> password but correcting that does not seem to help.
>  
> Dell 600m laptop.
>  
> thanks for any assistance
 I assume that when you say that the router "Shows up" you are talking 
about in the dropdown list in the network manager applet.  I have had 
the same problem when I changed my router's wifi/wpa passphrase. (Yes, 
you said you didn't, but obviously something burped)  Note: I have not 
had to do this since upgrading to Gutsy, but I assume all the steps 
still are the same.

Here is what worked.

First, shutdown NetworkManager with the command:
$ sudo /etc/dbus-1/event.d/25NetworkManager stop

Second,
Reset WPA key for an ssid:
gconftool-2 --recursive-unset 
~/.gconf/system/networking/wireless/networks/<ssid>
(or, just stop NM and delete the directory)

(Frankly, for me I think I did something wrong with the gconftool-2  I 
don't recall what the problem was.  The two times I have had to do this 
since, I just deleted the directory.)

Third, Reboot.  When you next try to access that wireless node, it will 
be seen as a new one and ask for password and whatever other configuration.

It seems to me that you should be able to just issue $ "sudo 
/etc/init.d/dbus restart" which will take down dbus, hal, NetworkManager 
and restart them all, then MN would figure out that it is missing the 
file for the <ssid> and ask you for a password when youo try to access 
it.  But it only worked for me after a reboot.  If anyone has an idea of 
what else needs to be done to avoid a reboot, I'll add it to my notes!




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