I recently bought three X60 Deco. My pc in ground floor is wired connected to router and main Deco. The 2nd Deco is on the first floor and is wirelessly connected to main Deco.

I want to watch movies which are stored in my pc through media player which is connected to satellite (2nd) Deco. The type of connection is as showing below

Is it possible something like that? Also, Deco need to be in router or access point mode?

Thank you in advance!