How do I install using "Access Point Mode?" I'm technologically illiterate and have spent HOURS trying to get answers from TPLink without success. I followed their instructions and have connected my existing Linksys router with the Archer 7 using an ethernet cable from the Ethernet port on the Linksys to the Internet port on the Archer 7. Shouldn't one of the routers be connected to the modem? If so, which router and which ports do I use? The Internet port on the Archer 7 is already occupied!