Hi. My modem is located in the store beneath the stairs and has a connection to the ethernet ports to my living room and master bedroom. 

I was wondering to connect both decos straight to the ethernet port, 1 in the living room and the other in the master bedroom. 

Is this possible? Both needs to be set ap mode?

{ISP MODEM} --> ethernet (living room)  --> deco E4 --> TV (iptv)

                          --> etherner (m.bedroom) --> deco E4 --> PC

Also can i connect my pc to the lan ports on the deco and still emit wifi for my phone?