Hello, I recently purchased an Arris G36 surfboard ax3000. Then I realized I wanted a mesh system in my house. 
 

My question: what is the most economical way to do this? 
 

Do I purchase two W31 mesh routers in addition to the arris g36? 
 

Do I still need the arris g36?

Is there a better system to purchase? I have a couple kids  and it seems like they are always on YouTube and iPads. We aren’t big gamers (yet).

your help is greatly appreciated! 

Thank you!