I just got my Deco - TP-Link system but not sure it will work with my set up. We have satelite internet connected to a router/modem in an outbuilding (husband's study) as this is where we were able to get a satelite signal. We run an ethernet cable about 100' long to the house to another router. The house has some dead spots so I was hoping to extend the wifi signal throughout the house. I thought I'd be able to connect the deco to the router in the house and it would be straightforward. However, it wants me to create a new wifi name and password. Not sure what this will do to the wifi in the study. I'm confused. Can I use the same logon as in the study? Any thoughts?