@Carl 

Thanks Carl - I should have mentioned that my Frontier Arris router is also set up for Easy Mesh.  So I set up my router for Easy Mesh and then set up my extender for Easy Mesh.  This is why I am surprised to see my extender with SSID_EXT.

  @Michel_G 

Hi Carl - thanks for your help I just finished talking to 2 tech support representatives to assist me. I believe there is an issue with the extender as when I select my network in the set up, it cannot seet my router set up as an Easy Mesh.  I will see the TP-Link router that I have but not the Frontier one.  However, I was able to configure a Netgear extender with Easy Mesh on my Frontier Router so I know the router is working.  Bottom line I am exchanging my extender as it does not seem to be work quite right...a

thanks again for your help!

Michel_G wrote

I connected my RE715X extender to my Frontier Arris NVG468MQ using Easy Mesh.  Set up was very easy but it seems to be working still as an extender since it kept a different SSID from my router.  It tagged a "_EXT" extension to it.  For mobile devices to switch connection within the Mesh, I would have expected for the SSID to be the same between the router and the extender. 

 

I also have a TP Link router and TP Link extender behind my Frontier router and use One Mesh, that has only one SSID and works flawlessly.  I am trying to build a Mesh with my Frontier router for added security and separate my guests and my IoT devices for my house from my personal One Mesh network.

 

Is my set up correct and that is the way the SSID work with TP Link and Easy Mesh?  Did I miss a configuration step?  I saw I could change the SSID in my Extender setup but I am not sure if it is wise.

 

Any input will help.

 

Thanks - Michel

If your goal is to have a single SSID for both your router and extender, similar to your TP-Link setup, you may need to check the configuration options on your RE715X extender. Its's possible that there is an option to change the SSID and configure it to match your router's SSID. Changing the SSID may affect the seamless roaming capability that Easy Mesh Provides. 
Regards: Bikerworlds