2.4 ghz Device not Connecting to Router

I recently bought a camera that requires a 2.4 ghz wifi connection (Link below). I have been unable to pair it with my router. Assuming the device was broken I was about to return but tested it on a friends wifi and it connected right away. My router has the 5ghz and 2.4 ghz channels separate so I know it’s not connecting to the wrong channel.

My router information: NETGEAR AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router (C6300). I bought it in October of 2016 and have never updated it or done anything to it.

I’ve read that doing a factory reset occasionally helps with device connectivity issues, but what other steps should I take?

Edit: I know very little about routers/computers in general so detailed instructions or links to detailed instructions would be best.

Link to Router:

https://www.amazon.com/gp/product/B00J65WQHU/

Link to Camera:

https://www.amazon.com/gp/product/B06ZZQL1XD/