Hello, I recently got an AirPort Extreme AC to replace my AirPort Extreme Base Station (3rd Generation.) I now want to use that Airport 3rd Gen to wirelessly extend the Airport AC. I used the Airport Utility on my Mac to configure the Airport 3rd Gen, but it keeps failing after the utility sends the configuration to it. When I check the status, the utility says the Airport can't find the wireless network. It saw the network when I configured it initially. I don't know why it won't do it after. I've already reset the Airport 3rd Gen multiple times. I wonder if the Airport is faulty. And I know my wireless network is able to be extended because I have another AirPort Extreme Base Station (1st Generation) that is extending it. So I don't know why I'm having trouble with the newer generation Airport. Hope someone can help. Thanks.