How to Fix Wi-Fi Dead Zones Around Your Home

A Wi-Fi dead zone is a room or part of your home where the wireless signal becomes too weak or unstable to use properly. A phone may show one bar, a television may buffer constantly, or the network name may disappear altogether.

The solution is not always a new router. Dead zones are usually caused by distance, poor router placement, dense building materials, interference or an incorrectly positioned mesh node or extender. In many Australian homes, the problem begins with an NBN connection box installed in a garage or at one end of a long floor plan.

Work through these checks in order. The early steps cost nothing and help identify whether you have a Wi-Fi coverage problem, an internet-service fault or one misbehaving device.

The short answer

First, test the internet by Ethernet at the router. If the wired connection works but Wi-Fi fails in only part of the home, you have a coverage problem.

Move the router into an open, elevated and more central position. Keep it clear of cupboards, televisions, large appliances, metal, mirrors, fish tanks and dense walls. Test the weak room again.

If relocation is not enough, place a mesh node or extender partway toward the dead zone while it can still receive a strong signal. For large, double-brick or multi-storey homes, a wired access point or Ethernet-backed mesh node is the most dependable solution.

Before you begin

Do not factory-reset the router as your first step. A reset can erase the internet configuration, Wi-Fi name, password, home-phone settings, parental controls and device reservations. Record important settings before making major changes.

Use one reliable phone or laptop for comparison tests. Keep the same speed-test service and server where possible, and test from the actual place where the device is normally used.

If the router, NBN equipment or power supply smells burnt, is unusually hot, has liquid damage or has a damaged cable, disconnect it safely and contact the provider or an appropriate technician.

Step 1: Confirm that it is really a Wi-Fi dead zone

Stand near the router and run a speed test. Then connect a capable computer by Ethernet and test again. If Ethernet is also slow or offline, the problem is probably not the wireless coverage alone.

Check the provider’s service-status page and the lights on the NBN equipment and router. Restart the network in the order recommended by the provider. A common sequence is to turn off the router and NBN equipment, restore the NBN equipment first, wait for it to reconnect, and then restart the router.

If every device fails everywhere, investigate the NBN service, router or provider. If devices work beside the router but fail in one room, continue with the coverage steps below.

Step 2: Check whether only one device is affected

Take two different devices into the problem area. If one works and the other does not, the room is not a complete dead zone. The affected phone, laptop or television may have old wireless hardware, outdated software, a damaged antenna or a saved-network problem.

Restart the device, install operating-system and network-driver updates, forget the Wi-Fi network and reconnect using the correct password. Disable any VPN temporarily for testing, then re-enable it afterward.

Some older smart-home devices use only 2.4GHz and may struggle with WPA3-only security or certain combined-network settings. Check the product’s official instructions before weakening security across the entire network.

Step 3: Map the weak areas

Walk through the home with the same device and note where performance falls sharply. Test at desks, beds, sofas and television positions rather than standing in doorways. Record download, upload, latency and whether the connection drops.

A simple floor-plan sketch is enough. Mark the router, major walls, stairwell, appliances and the rooms that matter. Some router and mesh apps can also display signal quality or create a basic coverage map.

Repeat tests at different times. A consistently weak room suggests coverage; a problem appearing only in the evening may involve congestion or interference. One speed-test result is not a diagnosis.

Step 4: Restart and update the router

A restart can clear a temporary software fault, memory problem or stalled radio. Turn the router off using its power control, wait around 30 seconds and turn it back on. Allow several minutes for the internet and Wi-Fi to return.

Check the router or provider app for firmware updates. Updates can improve stability, security and compatibility. Provider-managed gateways may update automatically, while retail routers may require approval through their app or administration page.

A restart cannot defeat a concrete wall or double the router’s range. If the same physical dead zone returns immediately, continue with placement and network-design changes.

Step 5: Move the router into the open

Place the router on an open shelf, console or bench at roughly waist to head height. Keep it off the floor and out of closed cabinetry. Telstra recommends an elevated, open location away from electrical equipment and large metal objects.

Do not hide the router behind a television, inside a metal communications cabinet or at the back of an entertainment unit. These positions obstruct radio signals and can trap heat.

Move it even one or two metres and retest. Shifting the router to the other side of a dense wall can make a larger difference than replacing it with a more expensive model.

Step 6: Find the centre of actual use

The best position is near the centre of the rooms that need Wi-Fi, not necessarily the geometric centre of the building. Mark the home office, televisions, bedrooms, cameras and other priority areas.

A central laundry may be a terrible choice because it contains appliances, plumbing and cabinetry. An open hallway shelf nearby may give the signal a clear path into several rooms.

If most important devices are at one end of the house, bias the router toward them. Perfectly equal coverage of an unused porch and a busy home office is not the goal.

Step 7: Keep the router away from signal blockers

Double brick and concrete: dense walls absorb more signal than plasterboard.
Metal cabinets and appliances: metal can reflect or block wireless signals.
Televisions: large electronics and metal components are poor neighbours for a router.
Mirrors: metallic backing can affect the signal path.
Fish tanks and plumbing: water attenuates radio signals.
Microwaves and some wireless equipment: interference can affect 2.4GHz performance.
Foil insulation and metal cladding: these can divide a home into difficult coverage zones.
Furniture and the floor: low placement puts more material between the router and devices.

You do not need to empty the room. Aim to remove the major obstacle immediately beside the router and create a clearer route toward the weak area.

Step 8: Understand the Wi-Fi bands

2.4GHz generally travels farther and passes through obstacles better, but it offers less capacity and faces more interference. It can restore a usable connection in distant rooms where speed is not the priority.

5GHz provides a stronger balance of speed and range for most televisions, phones and computers. It weakens more quickly through dense walls.

6GHz, available on compatible Wi-Fi 6E and Wi-Fi 7 equipment, provides cleaner spectrum and high short-range speed. It is not the band to rely on through several brick walls.

A combined network name lets many routers steer devices between bands. For troubleshooting, the router may allow temporary separate names so you can see which band works. Restore sensible band steering afterward unless a particular device requires separation.

Step 9: Check channels and interference

Leave channel selection on automatic initially. A modern router can scan the environment and choose among locally permitted channels. Restarting or using the app’s optimisation feature may trigger a new selection.

In a crowded apartment, several neighbouring networks may compete on the same channel. A manual channel can help when automatic selection performs poorly, but use the Australian firmware and manufacturer instructions rather than copying overseas channel advice.

For 2.4GHz, a 20MHz channel width is often more stable in congestion than a wider setting. On 5GHz and 6GHz, very wide channels increase peak speed but require cleaner spectrum. Reliability in the dead zone matters more than a huge close-range speed-test number.

Step 10: Adjust external antennas correctly

If the router has adjustable antennas, do not point every antenna directly toward the weak room. A typical dipole antenna radiates most strongly from its sides rather than its tip.

For one level, keep most antennas vertical to support horizontal coverage. For multiple levels, angle one or two differently to provide varied polarisation and vertical paths.

Follow the manufacturer’s instructions because designs differ. Routers with internal antennas normally need only their intended upright orientation.

Step 11: Move the router away from the garage

An NBN connection box is often installed in a garage, front cupboard or utility area. The NBN equipment may need to remain there, but the Wi-Fi router does not always need to sit beside it.

On FTTP, HFC, FTTC and Fixed Wireless services, a longer Ethernet path can often place the router closer to the occupied centre of the home. Temporarily test the proposed position with a long factory-made patch lead before paying for permanent cabling.

FTTN and FTTB commonly use a modem-router connected to a telephone socket. Relocation may require another suitable socket or a separate modem and router configuration. Check provider settings, home-phone requirements and hardware compatibility first.

Step 12: Fix coverage in a single-storey home

Start with the router near the middle of the occupied floor plan, elevated and open. Use hallways and open-plan areas to create clearer signal paths into rooms.

In a long or L-shaped home, one central router may still struggle because several walls line up along the route. Add a node or access point toward the weak wing rather than moving the router so far that the opposite end becomes a new dead zone.

Count barriers as well as metres. A longer route through open space and plasterboard can perform better than a short route through a bathroom, mirrored wardrobe and double-brick wall.

Step 13: Fix coverage in a two-storey home

Try a central position near a stairwell, void or another open transition between floors. These routes may be easier than transmitting through reinforced flooring and several walls.

Place the main router on the level containing the most demanding devices, then add coverage for the other floor. A wireless mesh node should sit where it receives a healthy uplink, not in the far bedroom where the original signal has already failed.

Large two-storey homes often need two or more access points. Ethernet backhaul between floors gives the most consistent result.

Step 14: Add a mesh Wi-Fi system

Mesh uses a main router and one or more coordinated nodes to cover different parts of the home under a unified network. It is generally the best consumer solution for several dead zones, multiple storeys or a large irregular floor plan.

Replace or configure the existing gateway correctly to avoid unnecessary double NAT. Some provider gateways can enter bridge mode; other setups use the mesh in access-point mode. Home-phone services and provider support can affect the choice.

Do not buy more nodes than needed. Two well-positioned units can outperform three badly placed ones, and excessive overlap may create interference or poor roaming.

Step 15: Position mesh nodes correctly

A wireless node belongs partway between the main router and the dead zone. It must receive a strong signal before it can pass a strong connection onward. Telstra and TP-Link both advise placing wireless boosters or extenders around halfway toward the weak area rather than inside it.

Keep the node elevated, open and away from metal, floors and appliances. Use the mesh app’s connection-quality indicator, but confirm the result with real devices in the target room.

Minimise wireless hops. A node connecting directly to the main unit normally performs better than one passing traffic through two or three intermediate nodes.

Step 16: Use an extender for one modest dead spot

A Wi-Fi extender can be an inexpensive fix for one bedroom, camera or low-bandwidth area. It receives the router’s signal and rebroadcasts it.

Plug it in roughly halfway to the problem area while the original Wi-Fi is still healthy. An extender installed inside the dead zone can only repeat the weak connection it receives.

Extenders may reduce throughput, add latency and create less seamless roaming than a coordinated mesh system. They suit a targeted budget fix rather than a large whole-home redesign.

Step 17: Use Ethernet backhaul where practical

Ethernet backhaul connects a mesh node or access point to the main router by cable. The node no longer needs to push its upstream traffic through walls over Wi-Fi, so placement becomes more flexible and performance more predictable.

Wire the network backbone before wiring every individual device. A cabled access point in a distant part of the house can improve phones, laptops, televisions and smart products in that entire area.

Ethernet is especially valuable across floors, through double brick, into extensions and between the garage NBN equipment and living areas.

Step 18: Consider a wired access point

A wired access point creates a fresh Wi-Fi cell near the dead zone. It is the most dependable solution for a remote office, masonry-separated wing or floor that cannot receive a good wireless mesh link.

Place it centrally and openly within the area it serves. Ceiling-mounted access points are designed for that orientation, while an ordinary desktop router should remain upright according to its instructions.

Use coordinated network names, security and roaming features where supported. More transmit power is not always better; devices must also send data back to the access point.

Step 19: Wire fixed high-priority devices

Connect desktop computers, gaming consoles, network storage and problem televisions by Ethernet when practical. Wired devices no longer compete for wireless airtime and remain stable even when Wi-Fi conditions change.

A small unmanaged Gigabit switch can add ports at a television cabinet or desk. Check that the switch, router and device ports support the speed you expect.

Wiring one busy television will not extend signal range, but it can free capacity for wireless devices and remove one unreliable connection from the problem area.

Step 20: Treat powerline adapters as a fallback

Powerline adapters carry network data through electrical wiring. They can help when new Ethernet cabling is impossible, but results vary with the home’s circuits, wiring condition, distance, appliances and electrical noise.

The advertised number is not guaranteed real throughput. Plug the adapters into wall outlets as directed by the manufacturer rather than a power board or surge protector.

Buy from a retailer with a reasonable return policy and test the exact outlets. Powerline can be excellent in one home and disappointing in the next.

Step 21: Fix outdoor and detached-building dead zones

Exterior walls, metal cladding, windows and distance make patios, sheds and granny flats difficult. Moving an indoor node to the nearest window may help temporarily but is not a reliable design for important service.

Use an outdoor-rated access point, a properly designed wireless bridge or professionally installed cabling. Indoor routers and mesh nodes should not be exposed to rain, condensation, extreme heat or direct sun unless specifically rated for it.

A detached home office used for paid work deserves a stable backhaul rather than a chain of indoor extenders.

Step 22: Check for sticky roaming

A device may remain connected to a distant node even when a stronger one is nearby. This is called sticky roaming. Toggle Wi-Fi off and on at the problem location and see whether performance improves.

Update the mesh firmware and client software, then check roaming and band-steering options. Avoid placing nodes so close together that every room receives several equally strong competing signals.

The client device ultimately decides when to roam on many systems. An older phone or television may behave differently from a new laptop on the same network.

Step 23: Do not confuse a dead zone with congestion

A dead zone remains weak because of distance or obstacles. Congestion appears when too many nearby networks or devices compete for airtime. The symptoms can look similar.

If signal strength is strong but speed collapses at busy times, inspect channel use, connected devices and background traffic. Move demanding fixed equipment to Ethernet and use 5GHz or 6GHz for compatible nearby clients.

A faster NBN plan may help when the internet connection itself is saturated, but it does not add wireless airtime or improve the signal reaching a distant room.

Step 24: Decide whether the router needs replacing

Replace the router when it no longer receives security updates, crashes frequently, lacks the bands and ports your devices need or cannot handle the internet plan. Do not replace it solely because a newer Wi-Fi generation exists.

A premium single router may improve coverage over a weak old gateway, but no legal consumer device can defeat every wall. For a large or difficult home, spend on multiple properly placed access points rather than one increasingly expensive router.

Check provider compatibility, connection type, VLAN or authentication settings and home-phone requirements before buying your own equipment.

Australian cabling rules

ACMA says registered cablers can install, repair and maintain data cabling in homes and offices. Customer communications cabling through walls, roof spaces, floors and building cavities must be performed by a registered cabler or under the required supervision.

Using a manufactured Ethernet patch lead between accessible ports is different from creating permanent building cabling. Do not drill through walls and improvise fixed network wiring because the cable carries low voltage.

Ask a cabler to show current registration and provide the required written compliance statement. New power points and mains electrical work require an appropriately licensed electrician.

How to confirm that the dead zone is fixed

Return to every position recorded on the original floor-plan test.
Use the same device, test service and server where possible.
Run several download, upload and latency tests.
Test during the evening as well as a quiet period.
Make a video call, stream high-quality video or play a game in the repaired area.
Walk between nodes and check whether calls or streams remain connected.
Verify that fixing one area did not create a new weak zone elsewhere.

A perfect speed-test number is unnecessary. The goal is stable performance for the activities used in that room.

Common dead-zone mistakes

Buying a faster NBN plan before testing Wi-Fi coverage.
Placing a mesh node or extender inside the dead zone.
Leaving the router beside the NBN box in a hot garage without testing relocation.
Hiding routers and nodes inside cupboards or behind televisions.
Adding too many extenders with different network names.
Expecting 6GHz to travel farther through walls than 2.4GHz.
Testing only beside the router instead of at the actual device position.
Factory-resetting before recording provider and Wi-Fi settings.
Replacing the router when only one old device has a problem.
Installing permanent data cabling without a registered cabler.

When to contact your provider

Contact the provider when the Ethernet connection is also slow or offline, the NBN equipment shows a fault, dropouts affect the whole home, or the service performs well below the plan across repeated wired tests.

Record test times, wired results, device details and the status lights. Clear evidence makes troubleshooting faster and helps separate an access-network problem from Wi-Fi inside the property.

If the provider confirms the service is healthy but cannot assist with third-party Wi-Fi equipment, contact the router manufacturer or a qualified home-network installer.

Frequently asked questions

What causes a Wi-Fi dead zone?

Common causes include distance, dense walls, concrete floors, metal, water, interference, poor router placement and a wireless node that cannot maintain a strong connection to the main router.

Will a faster NBN plan fix a dead zone?

No. It increases the capacity arriving at the router but does not strengthen the signal in a distant room. Fix placement, coverage or backhaul first.

Should I use mesh or an extender?

Use an extender for one modest dead spot and mesh for broader whole-home coverage or several difficult rooms. A wired access point is better where wireless backhaul cannot cross the building reliably.

Where should a mesh node go?

Place it partway toward the dead zone while it still receives a strong signal from the main router or another node. Keep it elevated, open and clear of dense obstacles.

Does Wi-Fi 7 eliminate dead zones?

No. Newer equipment can improve speed and capacity, but distance and building materials still weaken the signal. Wi-Fi 7’s 6GHz band performs best at shorter range with fewer obstacles.

Can I use the same Wi-Fi name on multiple access points?

Yes, when the equipment is configured with compatible security and network settings. Coordinated mesh or controller-based systems usually provide smoother management and roaming.

How many mesh nodes do I need?

Use the smallest number that provides stable coverage. The answer depends on layout and construction, not only floor area. Begin with the recommended pack, test it and add a node only where evidence shows it is needed.

The final verdict

Fix Wi-Fi dead zones by diagnosing before buying. Confirm the NBN service works by Ethernet, rule out a single-device fault, map the weak areas and move the router into an open, elevated and more central position.

For one modest dead spot, a correctly positioned extender may be enough. For several rooms or a large home, mesh is the better consumer solution. When double brick, concrete, multiple floors or detached spaces defeat wireless backhaul, use Ethernet and a wired access point.

The best network is not the one with the newest badge or the most nodes. It is the one that puts a strong access point near the devices while giving that access point a reliable path back to the router.

Sources

Router menus, firmware, provider settings and compatible features can change. Follow the instructions for the exact Australian hardware model. No manufacturer or retailer paid for inclusion.