I have two D-Link DIR-655 XTreme-N Gigabit Wireless Routers. Pretend, for my explanation, that there is no wireless activity, because that's not where the problem is. My cable modem is downstairs, connected to the first Router (I'll call it "Router A"). Router A is connected to a few systems, and the router upstairs ("Router B"). Router B is connected to a few systems. No systems upstairs can connect to the intenet, I believe because of a communication error between the two routers. Internet works fine downstairs. So to summarize Router A can find and access the internet, but Router B, connecting through Router A cannot. I thought that the upstairs router would be able to access through another router the same as any other connection, but it can't for some reason. I want to find out how to run these two routers in series so that I can have mulitple connections in each end of the house. Can anyone give me some insight into how to set this up?