How to Fix Wi-Fi Dead Zones at Home

Step 1 - Diagnose where the signal actually dies

Walk the problem area with your phone's Wi-Fi signal bar or a free app like WiFi Analyser. Note which room goes from strong to weak. A drop from three bars to one bar is a distance or obstruction problem. A drop to zero is usually a thick wall or a concrete slab floor.

Step 2 - Identify the obstruction

Standard plasterboard walls: minimal loss. Double brick or bluestone: severe loss per wall. Concrete slab between floors: high loss vertically. Foil-backed insulation in ceilings: very high loss - almost blocks 5 GHz entirely. If you have these, a single extender placed on the wrong side of the barrier will not help.

Step 3 - Choose the fix

Range extender: Cheapest option. Plug it in halfway between your router and the dead zone - not in the dead zone itself, where it would have nothing to rebroadcast. Works for one dead room in a plasterboard home. Adds latency; not ideal for gaming.

Mesh node: A dedicated satellite that talks to your main router. Better throughput, seamless handoff as you move around, lower latency than an extender. Right answer for multi-room dead zones and double-brick homes.

Wired access point: An Ethernet cable from your router to an access point in the dead area. The cable is the backhaul, so wireless performance is full-strength. Best option for a garage, granny flat, or home office in a separate structure. Needs a cable run - check CableBox for cable lengths and tools.

Step 4 - Place the hardware in the sweet spot

For a range extender or mesh node placed wirelessly: the sweet spot is the last place you have at least two strong bars from the existing router. This gives the node a good uplink to rebroadcast from. In the dead zone it has a weak uplink and will make things worse, not better.

For a wired access point: place it centrally in the area you want to cover. It does not need line-of-sight to your router because the cable handles the backhaul.