Q: Extend a existing WiFi network from different router

The AirPort routers use an Apple proprietary technology for extending a wireless network and work best with extending only other Apple routers. This is not unique to Apple and is true for most other router manufacturers.

However, if the connection between the routers does NOT have to be wireless, you can configure both routers for a "roaming" network.

When setting up the airport all you have to do is select extend a wireless network.

When setting up the airport all you have to do is select extend a wireless network.

You can select "extend a wireless network", but it will almost certainly not extend a wireless network from a Netgear router wirelessly.

The AirPort will likely be configured to "join a wireless network" if you try this. The Netgear network will not be extended in this setting.

In order to get the airport to extend the network, then, click the more options button and select extend a wireless network

This will not work. Trust us.