2 routers chained like that is a setup quagmire. I field one router and if I need another hot spot I use the second "router as a WAP."
But maybe it's just that cable this time. Did you try it with this second router with a short factory made cable?
Remember I have never supported this setup. Google "How to use a router as a WAP" to see what I setup.
Hey there. I've recently moved to a new house and had the electrician (unsuccessfully) set up the internet. I'm not very good at this but I'll try to explain as good as I can.
First, we have a Huawei modem from the ISP and 2 routers (both Asus RT N12). The internet cable from the ISP is in the attic together with their modem and our own router. Everything looks fine there: the ethernet cable connects LAN1 port (on the modem) with the WAN port on the router. Then, on the first floor we have another ethernet cable coming out of the wall and into WAN port of the second router.
It usually works like this: when you're on the ground floor you're connected to Wireless1; when you're on the first floor and attic there's Wireless2. It works ok most of the time. However, they periodically f*** up. I get a pop-up chrome tab saying things like 'the network cable is not connected' or 'check wan port'. It always bugs me about the wan port even though I've been to the attic a thousand times and it looks fine! This goes on for hours and random stuff seem to solve it, like turning the router off then on.
Any help would be highly appreciated!