WiFi Dead Zones at Home: Why It Happens and How to Fix It
If your WiFi is strong in one room and drops out in another — or the basement has no coverage, the top floor is patchy, or signals vanish the moment you walk through a thick wall — you are dealing with one of the most common home networking problems there is. And the cause is almost always the building itself, not your router.
The frustrating part is that the usual fixes — range extenders, powerline adapters, mesh nodes, a faster router — often do not solve it either. Here is why, and what actually does.
Why Some Houses Are Hard for WiFi
Standard WiFi routers are benchmarked against open-plan spaces with plasterboard walls. Real houses are rarely like that. The construction materials in your walls, floors, and ceilings determine how far a WiFi signal can actually travel — and some materials stop it almost entirely.
Brick and double-brick: significant loss. A single solid brick wall can halve signal strength; multiple walls compound the effect quickly.
Concrete and reinforced concrete: severe loss. Basement ceilings, floor slabs, and rendered concrete walls can block WiFi almost entirely.
Mud brick and rammed earth: walls are often 400–600 mm thick, dense, and mineral-rich. Among the most challenging materials for any wireless signal. Mobile phone reception suffers inside these homes for the same reason.
Foil insulation and steel framing: reflects radio signals just as it reflects heat. A well-insulated modern home can be harder to cover than an older one. The same effect causes problems in rural sheds — see our article on why you can't get a signal inside a metal shed for more on this.
Vertical distance: WiFi is designed to travel horizontally. Signals crossing reinforced concrete floor slabs — for a basement or upper floor — face severe attenuation.
Why the Usual Fixes Often Fall Short
Range Extenders
Extenders face two problems in difficult houses. First, they must sit close enough to the router to receive a usable signal — in a home where the signal does not reach far, that middle-ground location often helps neither end. Second, and more fundamentally, they operate on the same 2.4 GHz or 5 GHz frequencies as your router. If those frequencies cannot penetrate your walls, an extender using the same bands faces exactly the same barrier.
Powerline Adapters
Powerline adapters carry network traffic through your electrical wiring, which sounds ideal for avoiding wall-penetration problems. In practice, performance degrades when the two adapters are on different circuits (common in multi-storey homes), old or noisy wiring limits throughput significantly, and surge-protected power boards block the signal entirely. Real-world speeds are usually a fraction of the headline figures on the packaging.
MoCA Adapters
MoCA uses existing coaxial cable runs — the type installed for Foxtel or TV antennas — to carry a network signal between rooms. Where coax runs to the rooms you need, MoCA is genuinely reliable and worth considering. The limitation is practical: many homes do not have coax in the right places, and homes without any pre-existing coax infrastructure cannot use it at all.
Mesh Networks
Wireless mesh systems work well in open-plan homes with moderate wall construction. In difficult houses, the wireless backhaul between mesh nodes — which still runs on 2.4 GHz or 5 GHz — degrades through the same dense walls that defeated the original router. Tri-band mesh adds a dedicated backhaul radio, which helps at moderate range but does not overcome thick concrete or mud brick. Wired-backhaul mesh (ethernet between nodes) is the most robust option — but running cables through existing walls is expensive and often not feasible in older or heritage homes.
Buying a Faster Router
Before spending on new hardware, it is worth asking whether speed is actually the problem. Most Australian home internet connections deliver 50–250 Mbps — well within what basic 2.4 GHz WiFi can handle. A WiFi 7 router does not extend how far a signal travels or improve its ability to pass through walls. The 6 GHz band introduced in WiFi 6E and 7 actually has worse wall penetration than the 5 GHz band it supplements. If coverage is the problem, a faster router is unlikely to help and may reduce coverage at the edges of your home.
Why Wi-Fi HaLow Is Different
Wi-Fi HaLow (802.11ah) operates at 900 MHz — a lower frequency than standard WiFi — and lower frequencies have meaningfully better penetration through dense materials. This is the same reason AM radio reaches inside concrete buildings while 5 GHz WiFi does not. HaLow sits between the two on the spectrum, and inherits much of that penetration advantage.
HaLow also has substantially better range than standard WiFi, which matters in long houses where the problem is simply that the signal runs out before it reaches the other end.
One important note: TX-E Connect is not a speed product. The HaLow link between units delivers around 5 Mbps — enough for browsing, streaming, video calls, and general internet use, but not designed for high-throughput tasks like large file transfers or 4K video to multiple devices simultaneously. For most households this is not a limitation that matters. If you can stream Netflix, join a Zoom call, and browse without the connection dropping out, your internet problem is solved. What TX-E Connect delivers is a reliable signal that actually reaches the room — and it does it with a setup that is genuinely simple: plug in, connect, done. No configuration, no cable runs, no compatibility research.
The TX-E Product Range for Difficult Homes
TX-E makes three products, and understanding which one fits your situation is the starting point.
TX-E Connect - Indoor
Connect - Indoor is a wall-mounted unit that bridges a HaLow network and 2.4 GHz WiFi. It operates in dual mode: either radio can be the uplink, which means two units can talk to each other directly over HaLow without any additional hardware in between.
The typical setup for a difficult home is two Connect - Indoor units. One sits near your router and connects to it via 2.4 GHz. The second is placed wherever coverage is needed — the basement, the far end of the house, or an upper floor. The HaLow link between them carries the signal through the walls or floors that defeat standard WiFi. The second unit then rebroadcasts standard 2.4 GHz WiFi locally, and your devices connect to it as they would any normal network.
The throughput on the HaLow link is around 5 Mbps upload and 6 Mbps download — enough for browsing, streaming, and video calls, but not a speed product. If your problem is a connection that simply does not reach the room, 5 Mbps of reliable coverage is far more useful than a fast connection that drops out.
For the hardest environments — thick concrete slabs, sealed mud brick walls, heavily insulated modern construction — Connect - Indoor has an external SMA antenna port for its HaLow connection. A cable can be routed through an existing gap or penetration in the wall, positioning the antenna on the stronger-signal side while the unit stays in a protected location on the other. This bypasses the obstacle entirely rather than trying to penetrate it.
Setup is managed through the TX-E Connect app over Bluetooth. Uplink mode is selected on first use. There is no complex configuration.
TX-E Roam
Roam is a different kind of product entirely. It is pocket-sized, battery-powered (8+ hours), weatherproof, and designed to be carried with you. It connects to a HaLow network as a client and rebroadcasts standard 2.4 GHz WiFi for up to 10 devices — at the same ~5 Mbps throughput as the Connect units.
For someone in a large or difficult home whose internet use is light and mobile — browsing, messaging, a video call here and there — Roam may be all that is needed. Rather than installing fixed units and running a permanent HaLow network through the house, you carry Roam with you and coverage goes where you go. In the garden, upstairs, in the basement, out to the shed — wherever you are within range of a HaLow access point, Roam keeps your devices connected.
It is worth being clear about what Roam is not: it is not a fixed whole-home coverage solution. If multiple people in the household need simultaneous coverage in different rooms, Connect - Indoor is the right product. Roam suits a single mobile user who wants usable internet wherever they are, without the need for permanent installation.
Roam is in early-stage testing and sampling from Q2 2026.
Placement Tips
Whichever unit you are using, placement makes a meaningful difference in challenging environments. Higher on the wall is generally better than floor level. Near a doorway, stairwell, or window gives the signal a gap in the structure to travel through. If you are struggling through a particularly dense wall, the SMA antenna option on Connect - Indoor is the most reliable path forward — the antenna sits on the signal side, the unit stays protected on yours.
Summary
WiFi dead zones are almost always caused by building materials — brick, concrete, mud brick, rammed earth, foil insulation — or distance through multiple walls. Standard 2.4 GHz and 5 GHz WiFi cannot reliably penetrate them.
Range extenders and wireless mesh face the same wall-penetration problem as the router. Powerline depends on wiring quality and circuit layout. MoCA works where coax runs exist in the right rooms. Wired mesh is the most robust option where cabling is practical.
Faster routers (WiFi 6E, WiFi 7) do not improve coverage or wall penetration — the 6 GHz band actually has worse penetration than the bands it replaces. Coverage is a frequency problem, not a speed problem.
Wi-Fi HaLow operates at 900 MHz, giving it meaningfully better wall penetration and range than standard WiFi — without complex setup or cable runs.
TX-E Connect - Indoor: two units linked by HaLow, ~5 Mbps between them, wall-mounted, simple app setup. External SMA antenna port for the hardest environments. The right choice for most fixed dead-zone problems.
TX-E Roam: pocket-sized, battery-powered, carry it with you. Best for a single mobile user in a large or difficult home who needs light, flexible coverage without permanent installation. Not a fixed whole-home solution. Sampling Q2 2026.
Need help working out the right setup for your home?
Every house is different. Get in touch with the TX-E team and we can help you work out the best approach for your specific layout and construction.
TX-E Connect - Indoor Product Documentation →
TX-E Connect - Outdoor Product Documentation →
TX-E Roam Product Documentation →
What is Long-Range WiFi and How Does It Differ from Standard Home WiFi? →