Two-storey house, roughly 160m² per floor, single ISP router (Vodafone) sitting at one end of the building. WiFi at the far end, on either floor, was barely usable. The obvious fix – a mesh kit – didn’t sit well with me for two reasons: no VLAN support on consumer mesh gear, and I wanted actual control over the network, not a black box that “just works” until it doesn’t.