Airport network - difficulty to its replacement by a component of roaming

I have a roaming (ethernet) Airport network.

Cables/modems (UBEE of TW) - Airport Extreme - out ports WAN on Time Capsule and Airport Express (also connected directly to the radio). Configuration, as far as I know, conforms to Wi - Fi base stations: how to install and configure AirPort Express for AirPlay and iTunes - Apple support>

The Airport express was old and keep people with their streaming music dropped. So I had a new Terminal Airport Express 802.11n.

I can add it to the network - but as soon as I do, the internet connection goes down. When I remove it, the internet connection is up.

I can't understand what could be the problem; the old Airport Express does not cause this problem with the internet connection.

I'm under El Capitan.

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Lisa,

This type of problem occurs when the Express is first set up to connect to the network using Wireless... .and then the Ethernet connection is applied. In other words, the Express waiting for a wireless connection but it also gets an Ethernet connection... and this creates a massive feedback loop that effectively blocks the network.

Please, try the following:

Turn on the Express for a minute or two

Maintain in the reset on the back of the Express button until you see the yellow light starts to Flash quickly, hold a few seconds when it occurs, and then release the reset button. Give the Express a full minute to restart again.

Make sure that Ethernet network cable is connected to the "O" on the Express WAN port

Click the WiFi icon at the top of the screen of the Mac, and then click directly on the AirPort Express Terminal to start the configuration "Wizard". The first screen that appears resembles the illustration below, except that you will see your devices and the network name is displayed.

Type a short and simple name that you want to use for the Express

Click next

Now, look at the following screen to confirm that the Express is set up to extend using Ethernet. It is the confirmation that the Express will be configured correctly.

When you see the message Setup is complete, click done.  And you're done.

Tags: Wireless

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