Having trouble with the connection with my Apple Airport device. It loses the internet signal when plugged into my router.

The graphic display of the internet to my device (using the Airport Utilities application on my MacBook Air) goes amber and dies when I connect to the network from the device. When I connect to my router's network, it's fine. I dug the device out of storage in order to try to increase the range of my signal, which dies quickly with distance and a couple thin walls. The Apple Airport worked well in my old house in MI.

When I plugged it in and connected to it, it needed to be updated and it did that just fine, so that's not an issue. The device is alive but doesn't seem to accept the internet signal from my router. I believe the cabling is correct.

I'm more than happy to continue this conversation via PM if anyone has any suggestions.