That is, a router and somewhere you deploy a WAP.
Today you have a new choice with those MESH WiFI systems. Google is apparently leading the charge there.
I have broadband connection and need to have wifi setup in 2 floor house. Someone suggested me to have one TP-Link Archer D9 AC1900 connected with main line and two(one in each floor) of TP-Link TL-WA901ND.. will i get the wifi in whole house with this setup or should try something else

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