Connecting to AP with defined MAC

[redlinethecar]

Extremely sorry if I am posting in an area where I am not supposed to. The last thing I want to do is upset mods or members. My question is probably a simple solution but I can't seem to figure it out. I have a backtrack live USB that I load. Once in the GUI I open the shell and change the mac as follows

ifconfig wlan0 down
ifconfig wlan0 hw ether XX:XX:XX:XX:XX:XX
ifconfig wlan0 up

then i use,

wicd
wicd-client

after that i try to connect to an access point and I always get stuck at "Obtaining IP address"

When I just proceed without changing the MAC everything works fine as far as connecting to the AP. Has anyone else experienced this?

[streaker69]

Could be that XX:XX:XX:XX:XX:XX is not a valid MAC.

[redlinethecar]

well I though that could of been the case but then i change the second to last letter of my real mac address from d4 to e4 and left the first ten characters alone and still the same problem. I'm still playing with it and trying to work it out but still no go yet. It's really driving me crazy cause when i boot into ubuntu it works just fine.

[reeth]

If you are not able to change your mac address , then just turn the mac filter on your router off

[redlinethecar]

Mac filtering is not on, on my router. That's the weird part. It doesn't work in Backtrack but when I boot into Ubuntu it works fine. It has to be something with backtrack I'm guessing. Unless the commands I enter in backtrack have to be slightly different other than that can't figure out what it is.