@ElCabezon Keep in mind that this router model may not support mesh feature in AP mode - make sure AX1800 is in router mode. If your AX1800 doesn't support any mesh feature, it could be used in AP...

@harshaV With a range extender you can't set an isolated network where they can see your devices when they connect to the RE's Wi-Fi. You can create a diffent SSID network with the RE705X but this...

@Veronik RE450 is planned to support WPA3 according to this list. You most probably experiancing this phenomenon - details. If that's the case, use the Case 1, Point 3 recommendation to mitigate this...

@CyberLost If you've set your VDSL modem router in bridge mode, you'll need another router to build the PPPoE session with the ISP - check this guide. If you don't have a second router, you can use a...

@Dragonlance There's no switch model with 16 ports and speeds of at least 2.5Gb, so the connection you mentioned should work just fine.

@manjtb350 All of the mentioned devices support Easymesh, so you should be able to achieve that easily - video guide. For Easymesh in AP mode you should wait till AX53 has this implemented - details.