Test the broadband connection with a device connected by Ethernet to the router before buying more Wi-Fi equipment. If the wired connection meets your service expectations but several rooms have weak Wi-Fi, consider mesh; for fixed devices that need a dependable connection, consider Ethernet. An extender suits a limited weak spot with a usable nearby signal, while replacing the provider router requires checking its connection requirements and any effect on provider support.
Who needs which approach?
Households with weak Wi-Fi across several rooms
If the connection works near the router but regularly drops upstairs or in other used rooms, assess mesh coverage after checking the wired connection. Ofcom notes that placement and obstacles affect Wi-Fi; TP-Link describes its Deco systems as using multiple nodes to cover a home.
People relying on fixed, high-demand devices
For a workstation, console or TV that stays in one place, assess whether an Ethernet cable can reach it. Ofcom recommends a wired connection for the clearest broadband speed test, while eero says compatible mesh nodes can also use Ethernet for their connection to one another.
Households considering a new router
If you want to replace or reconfigure the supplied hub, establish how your provider hands over the service and which settings or features depend on its equipment. Ofcom cautions that a third-party router can be harder to set up and may limit the help your provider can offer.
What should you check before buying?
Start with a wired test at the router: according to Ofcom, it gives a clearer picture of the broadband connection than a Wi-Fi test. Then make your first equipment choice around the problem that matters most at home.
| Concern |
What to check |
Who this matters to |
| Coverage across rooms |
Map the weak rooms and possible mesh-node positions; check whether the chosen system works with the provider router you intend to keep. |
If I lose Wi-Fi in several regularly used rooms, I need coverage where I move around, not just a faster broadband line. Around 36% of consumers would put multi-room coverage first. |
| Reliable fixed-device connections |
Check cable routes, available Ethernet ports and port speeds; for mesh, check support for Ethernet backhaul on the exact model. |
For work calls or gaming at a fixed device, I want a dependable connection and a way to separate Wi-Fi problems from line problems. Roughly 29% of consumers would prioritise wired reliability. |
| One limited weak spot |
Find a position where an extender can still receive a usable router signal, and check compatibility with the existing Wi-Fi setup. |
If just one room has weak Wi-Fi, I would rather address that area than change the whole network. About 21% of consumers would make a limited extension their first priority. |
| Router replacement |
Confirm the provider hand-off, WAN and setup requirements, and any phone, TV or hub features you need to retain. |
If the supplied router limits the controls or features I need, I must know whether a replacement will work with my service. Around 14% of consumers would put router control and compatibility first. |
Common buying mistakes
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Buying coverage equipment before testing the connection
A weak Wi-Fi signal and a poor broadband connection can feel similar, but extra Wi-Fi equipment will not fix a provider-side fault.
Connect a suitable device to the router by Ethernet, compare the result with your service information and contact the provider about a poor wired result before buying coverage equipment. Ofcom recommends Ethernet for the most accurate speed test.
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Using an extender for a whole-home coverage problem
An extender needs an existing signal to extend. Ofcom cautions that boosters and repeaters can affect speed and responsiveness, so one unit should not be treated as equivalent to a multi-node mesh system.
Consider an extender for one weak area with a usable signal between it and the router. For recurring problems across several rooms, assess mesh placement or a wired access route instead.
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Expecting full-fibre speed over every Wi-Fi connection
Walls, interference, device capabilities and the wireless connection between mesh nodes can all affect what reaches a device, even when the broadband connection itself is working well.
Use a wired test to assess the service, then choose Ethernet for suitable fixed devices or assess mesh-node placement and backhaul for rooms that need Wi-Fi.
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Replacing the provider hub without checking the service setup
A router with the features you want still has to work with your provider’s connection arrangement. Ofcom also warns that providers may be less able to help with third-party router faults.
Ask your provider about the hand-off, required router settings and any phone or TV dependencies. If you plan to retain a hub and change its operating mode, check the instructions for that exact hub before making the change.
Brands to consider
TP-Link
Relevant when comparing Deco mesh systems with range extenders for different coverage problems.
- TP-Link describes Deco as a multiple-node network and its extenders as equipment that extends an existing Wi-Fi signal.
- Check the exact model for Ethernet-backhaul support, ports and compatibility; those features should not be assumed across the range.
eero
A mesh-focused range to assess when guided setup or wired connections between compatible nodes matter.
- eero describes automatic updates and, for compatible setups, Ethernet backhaul between mesh nodes.
- Wired backhaul requires suitable devices and cable routes; confirm the features of the particular system before choosing it.
NETGEAR
Its Orbi 770 series is relevant to households assessing Wi-Fi 7 mesh and multi-gig Ethernet requirements.
- NETGEAR lists tri-band Wi-Fi 7, enhanced backhaul and 2.5 Gig Ethernet for the Orbi 770 series.
- Check whether your broadband tier, wired devices and layout would make use of those particular specifications.
Ubiquiti
Its UniFi access points are relevant to households planning a more configurable wired Wi-Fi installation.
- The UniFi range includes separate access points, including in-wall options with Ethernet connectivity.
- Plan the required gateway or controller, power, mounting and configuration for the exact access points selected.
Joybuy products for a limited weak spot
The extender below is a choice to assess when one area has weak Wi-Fi but an existing router signal can still reach a suitable extender position. Test the wired broadband connection first; an extender is not a substitute for addressing a poor line or planning coverage across several rooms.
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TP-Link RE220BE BE3600 Wi-Fi 7 Range Extender
Consider this extender for one weak area where it can receive a usable signal from your existing router. If EasyMesh roaming matters to you, check compatibility with your exact router model before buying.
View on Joybuy
Frequently asked questions
How do I know whether the problem is my Wi-Fi or broadband service?
Test with a suitable device connected to the router by Ethernet, then compare the result with your provider’s service information. Ofcom recommends a wired connection for the most accurate speed test: a satisfactory wired result alongside weak rooms points towards an in-home Wi-Fi problem, while a poor wired result is evidence to raise with the provider before buying more Wi-Fi equipment.
Can a replacement router connect to an Openreach full-fibre ONT?
A router can connect to an Openreach optical network terminal (ONT) through its WAN Ethernet port, but it must also meet your broadband provider’s setup requirements. Openreach specifies keeping the ONT powered and using a CAT5e or CAT6 cable to the router’s WAN port; confirm the settings and service features needed for your particular provider before purchase.
Will one Wi-Fi extender fix weak coverage throughout the house?
An extender is better suited to a limited weak area where it can still receive a usable signal from the router. Ofcom cautions that extenders can affect speed and responsiveness; if several rooms regularly have weak coverage, assess mesh or a wired access route instead.
What should I check after installing mesh or an extender?
Check whether the equipment covers the rooms you use from its chosen position, and follow the exact model’s instructions for updates. Keep an applicable fibre ONT powered; if a mesh node has a weak wireless connection to the main network, reassess its position or check whether the system supports an Ethernet connection between nodes.