okay so after spending a few hours on the phone with apple support because of my early 2011 mac book pro not working with my apple TV we came up with a solution. first we did a SMC reset on my computer:
1. You will shut down your computer by clicking on the Apple in the upper left corner and selecting Shut Down.
2. Make sure only your power adapter is plugged in.
3. Press all four of these buttons at one time (left side of keyboard: Shift, Control, Option (or Alt) and your power button)
4. Hold them all for 5 seconds then release them all together.
NOTE: Your computer will not boot during this process. If it has booted up at this point, the SMC reset has failed and you will need to shut down and start over with Step 1.
5. Press your power button and allow the computer to start up like normal.
then we did a PRAM reset on your computer:
1. Shut down your Mac.
2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys as soon as you press and release the power button.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.
Then we made sure i had up to date firmware on my macbook pro, my apple TV and my wireless router, those all checked out.
Then they had me do a reset of all of my devices (Apple TV, MacBook Pro, and Wireless router.)
Finally we were able to determine it was not the apple TV that was the issue and it probably was not the Mavericks software on my Macbook Pro either so the final step was to login to my wireless router using the IP address 192.168.1.1 and changed the 2.4GHz channel setting that my wireless router was broadcasting on (it was set as a default to "auto") (they suggested to use either channel 2 at 2.417GHZ, channel 6 at 2.437GHZ, channel 8 at 2.447GHZ, or channel 9 at 2.452GHZ)
i am not sure if these steps will be the solution for any of you out there but it seems to have worked in my case.