Welcome to the Pi-hole community, devinberg. 
Your description reads very similar to an existing topic dealing with a Netgear piece of equipment, if a different model: Netgear C7800 Firmware V3.01.36 and Pihole not working properly
The conclusion was that this specific model does intercept some of its network's DNS traffic and blocks or redirects it, with little means to change that.
Please have a read of post #13 that summarises and explains most of the steps involved in finding that out.
Feel free to return here should you need further advice on putting these steps into action to verify if your Netgear model exposes similar behaviour.