@Kevin_Z Ah thanks for explaining Kevin_Z I noticed that diagram of home of Archer C7 on TP link websites does not show it covering all home but using extenders to so (can't find page again), I wish...

Hello, Honestly I am not gettting the High power model concept and this is not helping me chosing a router For example TP-Link TL-WR941HP, it says high power and go through walls yet it is designed...