Mac Forums

So i have a 2g apple tv and a macbook pro. now i got my apple tv to connect to the internet and everything. My apple tv has its homesharing on and so does my computer. They are also on the same username. Now my apple tv wont realize that the computer is on and the computer wont recinize the apple tv. I have reset everything a couple times and all the software is up to date. PLease help!