First, open your Network Connections and right cilck on the wired NIC and choose "disable" from the dropdown menu.
Then, connect to the WLAN. When you're connected with your wireless NIC, open a command prompt window (ie: Start >> Run >> type cmd and hit Enter) and perform the following command:
Post the output of that command here. For details on how to post the info from a command prompt window click on my name above in my response and read my "how-to" guide titled, "Post the output of ipconfig (version 2)"
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.