Question about Zyxel WX3100 WLAN Mesh Repeater

Is possible.
Only the set-up is special. Don't follow the enclosed instructions, it won't work.
But with the 'MPro Mesh' app from Zyxel, it works straight away and then everything runs smoothly.

Works perfectly. Only one SSID is visible to clients. As in the other comment, I also used the MPro Mesh for the setup.

Hello everyone,
Yallo has now decided to replace the Zyxel X7501-b with a Sagecom F5685LG.
They seem to do this for all customers and there is no way to switch back to the Zyxel.
However, this means that the Zyxel WX3100 can no longer be operated in a mesh (separate SSID).
The "experts" from the hotline believe that it should work, but it doesn't.
The alternative would be to activate the bridge mode, but I didn't want to do that from the start, as it would involve 2 devices (modem + router)...
Have any of you managed to do this?
Greetings

thanks Anonymous & stonebone, it worked perfectly.