Despite Amazon incorporating this business into their company, Eero is a great system!
It allows you to separate the wireless from your modem which has its benefits of isolation and dedication.
You RJ45 from your modem to what is called a gateway and from there your put an access point for every 1000 square feet of house.
I cured all dead spots on the property, and also have the ability to control internet access to kids devices.
Here is a screen shot of the app:
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