I have an Airport Extreme (2008) and a second Airport Espress (2008) to broad the wifi network.
When the Extreme was connected to a cable-modem, all was OK.
But now, i have it connected in bridge mode to another router, and the Airport software can´t see the Airport Extreme and read its settings. The software only can see the secondary Airport Express.
How i can see the principal (primary) Airport Extreme?
What is the make & model of the other "router" that you have the AirPort Extreme connected to? Are they interconnected by Ethernet or by wireless? What about the Express? How is it connected to both the other router and the Extreme?
What is your overall networking goals with all of your current routers?
The new router is a Netgear CG3300CMR and is provided by my ISP. My old AirPort Extreme is connected to it by ethernet cable.
The express is connected by wireless (10 meters, more or less) to the extreme's wifi network, to broad that network In the garden.
With your configuration you could configure all of the routers for a hybrid extended/roaming network.
You have a few choices. It will depend on, whether or not, you want a single Wi-Fi network or multiple ones.
I would recommend a "single" one. With that you would leave the AirPort Extreme connected to the Netgear router by Ethernet. The Extreme would need to be reconfigured as a bridge. Both the Netgear and Extreme routers would broadcast a Wi-Fi network, but both would use the same network name (aka SSID) and use the same wireless security type & password. You would then use the Express to extend this network.
Thank you, but I have already the configuration that you explain in your post. My problem is with the AirPort software, i can see the Express which extend the network, but i don't see the Extreme Airport that creates it ( and i have access to the internet through it):
Express (extend the network and visible) -> wireless -> Extreme (create the wifi network, but invisible) -> ethernet cable -> Netgear cable-modem -> Internet
Airport software misses Airport Extreme
