How can I find my Wireless ID for Apple TV? I cannot set up without this per my apartment block communal ISP

I live in an apartment block and am signed up to their communal internet which is password protected and hence i cannot set up my apple tv. In order to allow the Apple TV to get passed this first stage, I need the MAC/Wireless ID to connect to the net and then proceed with set-up. I cannot locate the MAC/Wireless ID on the box.. any help appreciated