Weak apartment WiFi usually comes down to router placement, thick concrete/brick walls, or channel congestion from dozens of neighbouring networks in the same building. For a 1–2 bedroom unit, a single good WiFi 6 router centrally placed is often enough. For larger apartments, multi-level townhouses, or persistent dead zones, a Mesh system with wired backhaul between nodes gives the most reliable result — far more consistent than a single router with an extender.

公寓WiFi差通常是路由器位置不对、水泥/砖墙太厚，或者同一栋楼几十个邻居网络导致频道拥挤。一房两房的单元，一台放在居中位置的WiFi 6路由器通常就够了。更大的公寓、跨层联排别墅，或者一直存在的信号死角，用节点间走有线回程的Mesh系统效果最稳，比单路由器+信号放大器可靠得多。