Expanding my network to the horse barn to connect a video camera
I have a 25MB ATT DSL line (the best I can do here in the country) that comes into one end of my basement to an ATT-provided Arris BGW 210-700 wireless gateway that is a combination modem/wireless router. I currently have that connected via CAT6 cable to a TP-Link AC1750 Archer C7 wireless router in the middle of the first floor. I have pretty good wireless in the house but need to extend it to my horse barn which is about 250-300 feet away so I can run a video camera that picks up 2.4 wireless to keep track on a new foal. I just purchased a DECO S4 3 unit Mesh system to hopefully strengthen my coverage to the barn. My question is how do I link everything? Do I plug one of these DECO S4 units into the BGW 210-700 modem/router? Do I leave the BGW 210-700 wireless on? Instead do i plug it into the Archer C7? What do I do with the Archer C7 wireless, if anything? At the end of the day I'd like everything to be under one network name.
Thanks in advance!