HTC One M8 :: How To Get Doubletwist Airsync To Work On Phone

I just bought the doubletwist Pro music player and i am trying to set up the airsync. I do everything the directions tell me to do until it says to get on my computer (I am using a mac) and to click on my device and enter in the code. well, the problem is that the device never shows up. I've tried changing my device name (as suggested), i've turned the airsync off and on again (as suggested) and i have tried adding an airsync device. when i try to do the last part, i'll enter in my ip address like is says to do, but it just says IP address unreachable.