Sep 03, 2016 · The Airport Express has the same network name and password and is extending both network bands (5ghz and 2.4ghz) When the AirPort Express connects to the network using an Ethernet connection, it must be configured to "Create a wireless network"..not "Extend a wireless network". Check to make sure that the Express is set up correctly.
Even though the company hasn't updated its AirPort Express router since 2012, and even though it discontinued the entire AirPort line earlier this year, Apple isn't just letting its Wi-Fi router Is AirPort Express a router? | MacRumors Forums Oct 31, 2005 Apple’s Done Making Airport Routers, So Try These Instead
Jun 21, 2019 · AirPort Express 802.11n: Version 7.8: Mac: Use AirPort Utility 6.3.2 or later, which is in the Utilities folder of your Applications folder.** iOS devices: Use Airport Utility 1.3.4 or later for iOS 7.1 or later. AirPort Express (original) Version 6.3 . Mac: Use AirPort Utility 5.6.1, for Mac OS X Leopard and Snow Leopard.
Extending network with 2 airport express from another router Yes it is, you have to configure your second airport express with the option to Extend Wireless Network. This is how my network looks (names blurred just in case): ANd this is the configuration for the Airport 2 (the one extending the network created by Airport 1:
How Apple AirPort Express Works | HowStuffWorks
How to Install and Use Airport Utility for Windows