Nighthawk RAX120v2 intermittently dropping internet on macbook

I recently purchased a RAX120. Setup was straight forward and pretty much everything has worked perfectly. The one issue I've been running into is that a macbook in my network keeps losing internet connection. The computer continues to say that it's connected to the router, but the router doesn't show it as being connected once this happens. If the computer disconnects and reconnects everything works as expected again, but eventually the same thing will happen again. Sometimes it happens more rapidly and other times it will stay connected for longer. There are 4 other devices on the network and none have experienced this problem (a linux laptop, an android phone, an iphone, and an android projector). My inclination is that it's something with the macbook, but it hasn't had any issues staying connected to other networks. Not sure if it's a feature on the network that is unsupported by this particular computer.

Thanks in advance!