I had some fun setting this camera up too, resorted to borowing a windows laptop and connecting camera via ethernet to set a static ip within the correct range using tenvis windows software. After that you can access camera on the mac and set up wifi and other settings. If you have the camera plugged in via ethernet you may have luck just trying to connect via safari/chrome to ip xxx.xxx.x.239:81 where xxx is your local ip range (for me 192.168.1.239:81 user: admin, password: "blank").
Could not get the camera to record alarm footage to a mac, did figure out you can turn your mac to an ftp server and get the camera to capture still images and write them to a folder of your choice.
Good luck
Their iphone app is a bit buggy too, set up free dynamic DNS with no-ip.com and seems to be doing ok.