[Resolu] net configuration ok but can't ping or pac

Question

Hi everybody, in advance i apologize for my english (not birth language)
I'm new in arch world. I have installed arch with cd as source.
Then, the time to config my wifi interface has come. By default, my ethernet and wifi card are reveled with ifconfig and iwconfig
So, I do the normal way with :
> ifconfig wlan0 up
> iwconfig wlan0 mode managed channel 1 key off essid secret_name (:p)
For the moment all is ok, when I tape again iwconfig, I saw that I'm connect at this box but when I want to ping, no response are coming back, and when I want to use pacman ( like pacman -Sy worg worg-clients xterm) I have the same response from all the miror.
> "Error failed retrieving file 'xxxx.tar.gz' from miror : xxxx Transient resolver failure"
I don't know in wich direction I have to search, thanks for help
ps: I have thought to decomment all miror in the appropriate file.
Last edited by kafka (2009-09-16 20:55:48)

Answer 1

Thanks you very much, when I type it, it give me an ip address. But some question it adds to me.
Why, like for an ethernet configuration, it didn't give me directly an ip address ?
And I want to add that the result of iwconfig before and after the command give the same result. But, I was thinking that the ip is certainly write with ifconfig command (the reboot time make me thinking )
So thanks you !