First establish whether the broadband service or the Wi-Fi inside the home is causing the problem: Ofcom notes that Wi-Fi cannot outperform the underlying broadband connection. For one weak area with a usable signal nearby, consider an extender; for weak coverage across several rooms or floors, consider mesh. Investigate a router replacement when the existing hub struggles throughout the home, and compare Ethernet or powerline for fixed devices where appropriate.
The useful starting point is where the connection fails and whether the affected devices need to move around the home.
Video calls, work systems and study platforms need a usable connection in the rooms where they are used. Check whether trouble follows a particular room, a busy period when others are online, or both before choosing coverage equipment.
Repeated coverage gaps call for a different layout from a single weak corner. Map the affected rooms and possible equipment locations before comparing a targeted extender with a multi-unit mesh system.
A desktop, console or television that stays in one place is worth assessing separately from mobile devices. Ofcom describes a direct wired connection as usually faster and more reliable than Wi-Fi; powerline is another route to consider when a cable run is impractical.
Check the service and existing setup, then match the size of the coverage problem to the proposed change. A fix for one room need not be the right approach for several floors.
| Priority | What to check | Your needs |
|---|---|---|
| Broadband or Wi-Fi? | Compare affected rooms and devices; check whether trouble changes when several people are online. Test a direct Ethernet connection where practical. Ofcom notes that Wi-Fi cannot exceed the broadband service. | If everything slows down, I want to investigate the connection before buying equipment intended to reach a weak room. |
| One weak area | Check for a usable router signal at an intermediate extender location, not just inside the dead zone. Which? describes an extender as a targeted way to increase reach. | Only one room has poor reception, and the connection works elsewhere in the home. |
| Several weak areas | Map the affected rooms, floors and possible mesh-unit positions. Check the number of units in the pack against the intended layout rather than treating a stated coverage area as a guarantee. | I need to use Wi-Fi in more than one distant part of the home, including when moving between rooms. |
| Concurrent use | Note how many people use video calls, streaming, downloads or games at the same time. Which? says its router testing includes multiple-device load; a stronger room signal alone does not establish that the connection can handle every busy period. | Calls or study sessions matter while other people are online, so I need to distinguish a coverage gap from congestion. |
| Router replacement | Record the existing router model, broadband connection type and provider setup. Confirm that a proposed replacement works with that service and what support the provider offers for third-party equipment. | Problems occur across the home rather than in one isolated room, or the existing hub disconnects frequently. |
| Fixed-device connection | Check whether the device has an Ethernet port and whether a direct cable is practical. BT describes powerline equipment that carries a network connection through household wiring; assess it in the intended sockets. | My stationary device needs a connection, but routing a cable to its room may be difficult. |
An extender or mesh system cannot make the Wi-Fi connection faster than the broadband service, as Ofcom explains. If devices across the home struggle, the equipment may leave the underlying problem unchanged.
Compare rooms and times of day, test by Ethernet where practical, and raise a suspected service problem with the provider before buying a Wi-Fi add-on.
An extender needs a usable connection from the existing router to relay into the weak area. Positioning it where the router signal has already failed undermines that purpose.
Follow the model's placement guidance and try an intermediate position between the router and the affected room.
Room layout, walls, interference and equipment placement affect what a coverage or device-count claim means in practice. A large stated figure does not establish performance in a particular weak room.
Map the rooms that need service, plan possible node positions and check the applicable return terms before testing equipment in place.
A third-party router may require a different configuration, and provider support for faults involving it may be limited. A router purchase should not be based solely on its Wi-Fi specification.
Identify the provider, connection type, current hub and any separate modem or fibre terminal; confirm compatibility and setup requirements for the exact replacement model.
These ranges illustrate different equipment routes; a brand's stated features apply to particular models, not every product it makes.
The Deco range includes multi-unit mesh systems for coverage across a home.
The eero 7 range offers app-managed mesh-router options in different unit counts.
The Orbi range includes multi-pack mesh systems for homes with wider coverage needs.
ASUS offers routers that may be extended into a single-network arrangement using compatible ASUS equipment.
These options comprise one extender for a targeted weak area and four mesh systems for coverage across multiple areas. A router replacement, powerline adaptor or direct Ethernet connection may still be more appropriate for the problem identified above.
No image available
Consider this extender for one weak area if there is a usable router signal at a suitable intermediate position. Check its compatibility with your router and the signal in the intended room; the BE3600 designation does not establish the speed you will experience there.
No image available
The three-pack is a mesh option to assess for weak coverage in several rooms or floors. Its title specifies dual-band WiFi 7 and 2.5Gbps Ethernet; confirm the required modem or gateway arrangement, the supplied plug and workable positions for the units before buying.
No image available
This three-pack is relevant when the weak signal appears in more than one area. Plan where its units could go and confirm how it connects to your existing broadband equipment; the BE3600 designation is not a promise of speed in each room.
No image available
This named three-pack is another route to assess for repeated weak areas. Its title identifies tri-band Wi-Fi 7; confirm the exact included units, broadband setup requirements and intended placement rather than using a stated device-capacity claim as a measure of busy-household performance.
No image available
Assess this three-pack if coverage is weak across several parts of the home. Check the broadband connection and possible positions for each unit; its whole-home description does not establish reception in your particular rooms.
Compare the connection in different rooms and at different times, using a device connected directly to the router by Ethernet where practical. If devices across the home are slow, particularly during heavy simultaneous use, investigate the broadband service before expecting an extender or mesh system to resolve it; Ofcom notes that Wi-Fi cannot outperform the service.
Consider an extender for one particular weak area when it can sit where the existing router still provides a usable signal. Which? describes it as a targeted way to increase reach; it is less suited to repeated weak areas across several rooms or floors.
Mesh is worth considering when weak coverage occurs in several rooms, on different floors or at distant parts of a larger home. It uses multiple units, so check their number and placement against the property rather than assuming a larger pack will solve every gap.
Powerline can carry a network connection through household electrical wiring to another room, as BT describes for its extender equipment. It is an option when a direct cable run is impractical, but results depend on the home's wiring; Ofcom describes a direct wired connection as usually faster and more reliable than Wi-Fi.