Wifi connection

[captzu777]

My wireless adapter is working and tell me i am connected but when I open the Firefox browser ,tell me that can not find the server,can somebody help?
thanks

[SecretLegend]

run:

sudo ifconfig


Then paste the output also what wireless card is it?
To find that out:


sudo aptitude install wireless-tools

then:

iwconfig


And post the output of that :D


Btw all these commands are ran from terminal <--- thought I should make that clear before you didn't know what I was talking about...