I seem to be having trouble with getting my routers working properly. These were already installed by the original purchaser of the home. I have 2 pre installed, one on the main floor, and one upstairs. The one downstairs has no lights, and the one upstairs is blinking green. When I try to set up through the app, it tells me to connect to configure me wifi, but it never shows up. Really struggling here and would like to get these working please.