@Samand If the main hub and the wifi extender are not forming a Mesh wireless network, then there is zero control over how a wireless client device connects to them. In other words, the laptop...

@Drolbor Hi, I think normally you would search for and connect to the Wi-Fi of the extender via the operating system of your device, like the examples of Windows 10 and Android shown below. After you...

@Samand Hi, A question. Are the "AC750 Mesh wifi extender" and the "main hub" actually joint into a Mesh network, be it either OneMesh or EasyMesh?

@kyanos Hi, I can't tell if it will help solve the problem, but could you please post the exact error message here? Was the Bluetooth part of the TX3000E originally shown as "Unknown device" before...

@Olegus1 The driver from the thread linked earlier does include the vendor ID and product ID of your T9UH, therefore it is supported.

@raulet Another thing to consider here. As per your first screenshot your "Internet Connection Type" is "DS-Lite". DS-Lite is IPv6 only and NAT Forwarding is only for IPv4. Maybe that's the reason...