Should I replace my Netgear CG3000Dv2 I bought December 2016

[JB911]

I'm not having problems, just want to know if a new modem should be purchased to replace this modem/router combo? I do have a splitter router attached currently so I can dedicate one network to my security system and the other to the rest of my house. I have 2 iPhones, smart tv streaming, and 2 iPads and printer, sometimes all being used at the same time and sometimes not.

[FURRYe38]

Netgear has set up a community forum specifically for the Cable Modem products. Most of the people who watch that forum are more likely to have experience with Cable modems and know how to work it better than those of us who follow this router forum. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/Cable-Modems-Routers/bd-p/home-cable-modems-routers

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear

Thank you.

[plemans]

What speeds do you pay for? that devices internal modem was a very base model docsis 3.0 device.

Even its internal routing is a pretty basic N450. 

Its not going to be fast even slightly.