wow, multiple routers..LOL i can see where it might get confusing. Typically only one router is needed for a network system. Off that you can set up a switch, 4 to 24 port, off the router to connect up multiple devices and PCs. You can even daisy chain the switches to connect up and run longer chains if needed. Example, my network has the Modem, Router and 24 port switch in my office. From my 24 port switch I run to various devices in my office, a 2nd office and to another switch in the living room that connects my 2nd xbox and DVR. I could go farther but eventually the network will be moving to a different part the house.
So I would recommend get back to a single router for the main router and daisy chain what you need off of it and install switches for connecting other devices around the house. Hope this helps. Let us know.