How to Choose a Wi-Fi Extender for a Basement

It can if the router signal reaches the extender location. Heavy materials and distance may make a wireless relay unreliable.

Try an intermediate spot near the stairwell or where the router signal remains stable, then check coverage in the target room.

Mesh can coordinate coverage across several nodes, while a basic extender relays an existing signal. A wired backhaul or access point may be strongest where cabling is practical.

Yes, a wired access point can provide a direct network link if you can run Ethernet and the equipment supports access-point mode.