If a wired or near-router connection works well but Wi-Fi is weak upstairs, focus on getting a Wi-Fi signal beyond the thick walls: keep the provider router and consider mesh, or a wired access point if Ethernet can reach the room. An Ethernet switch addresses too few wired sockets, not weak Wi-Fi; replace the main router only after checking the provider’s connection requirements and whether the router itself needs replacing.
If the connection works near the router but falters beyond thick walls or a floor, the position of the Wi-Fi radio matters. Ofcom notes that brick internal walls can make whole-home coverage more difficult; a faster broadband package alone does not move the signal closer to the affected room.
If fixed devices need Ethernet connections, or a remote Wi-Fi unit needs a wired connection back to the router, a switch can expand the local network. It will not extend Wi-Fi on its own.
Before replacing the primary router, check how the provider hands off the connection and which settings the replacement needs. Zen Internet documents an Ethernet connection from an optical network terminal (ONT) to a router, while Community Fibre specifies DHCP for its own service; neither arrangement establishes the requirements of every provider.
Compare the connection at the router with the weak room first. Then choose equipment for the remaining coverage or wired-port problem.
Consider it: Wi-Fi drops in separated rooms, but the existing router and broadband connection otherwise work.
Allow for: Nodes still need a usable connection to one another; BT says range varies with obstructions and interference.
Consider it: Ethernet can reach the weak area, placing a Wi-Fi radio beyond the obstructing walls.
Allow for: Cable routing, a suitable mounting position and a compatible power arrangement.
Consider it: You need more wired connections for fixed devices or a remote Wi-Fi unit.
Remember: A switch adds Ethernet ports but does not transmit Wi-Fi.
Consider it: The supplied router itself needs replacing and the new model can meet your provider’s requirements.
Allow for: Provider-specific connection settings; changing routers cannot remove the obstruction caused by thick walls.
| Priority | What to check | Your needs |
|---|---|---|
| Find the weak link | Compare a test near the router with one upstairs. Where practical, test a computer connected directly to the router by Ethernet; Ofcom recommends Ethernet as a more reliable way to assess the broadband connection. | I want to know whether new Wi-Fi equipment would address the weak room, rather than overlooking a connection problem at the router. |
| Reach separated rooms | Check where a mesh node can retain a connection to the first node, or whether Ethernet can reach an access point beyond the walls. Ofcom identifies brick internal walls as an obstacle to whole-home Wi-Fi. | Upstairs coverage matters more to me than a coverage figure that cannot account for my walls and floors. |
| Add wired connections | Count the devices and uplinks that need ports. On a five-port switch, a connection back to the router typically occupies one port; TP-Link lists five Gigabit ports for its TL-SG105. | I need sockets for fixed devices, and perhaps a wired connection to remote Wi-Fi equipment; extra ports alone will not fix upstairs Wi-Fi. |
| Keep the provider connection | Before replacing the main router, check the provider’s hand-off, WAN protocol and speed requirements, plus any voice-service or troubleshooting arrangements. Community Fibre specifies DHCP for its own service; do not assume the same setting elsewhere. | I would rather keep the supplied router if an added Wi-Fi unit can solve the coverage problem without changing the provider-facing connection. |
| Plan the wired route | Check whether cable can run to the remote node or access point, and how that device will be powered. TP-Link lists Ethernet backhaul for the Deco X50 and several power options for the EAP610; check the exact model and hardware version you intend to use. | If a cable can reach upstairs, I can consider a wired connection instead of relying on a wireless link through several thick walls. |
Ofcom notes that the in-home Wi-Fi link can be a bottleneck even when broadband reaches the router. Conversely, a poor direct connection at the router is not something an upstairs mesh node will fix.
Compare Ethernet or near-router performance with the affected room before choosing coverage equipment. If the connection is poor at the router too, contact the provider.
An Ethernet switch adds wired connections, not another wireless signal. It may resolve a port shortage while leaving the upstairs dead zone unchanged.
Use a switch for wired devices or a wired connection to a mesh node or access point; choose Wi-Fi equipment as well if coverage is the problem.
Community Fibre specifies DHCP for its own router connection, while Zen Internet describes an ONT-to-router Ethernet setup. These examples do not establish the settings for another service.
Check your provider’s instructions, equipment hand-off and any voice-service dependency before disconnecting its router. Keep the supplied equipment available for troubleshooting.
BT warns that obstructions and interference affect range, and Ofcom highlights the difficulty posed by brick internal walls. A node still needs a viable connection back to the network.
Plan positions along the route to the weak room. If that route crosses several thick walls or floors, check whether Ethernet backhaul or a wired access point is practical.
TP-Link provides examples of mesh, wired-switch and access-point equipment relevant to the different jobs in this setup.
BT’s whole-home Wi-Fi guidance is relevant when considering where added Wi-Fi units will sit relative to the existing hub.
Zen Internet offers an example of why the broadband hand-off matters before a full-fibre customer replaces a primary router.
These mesh systems relate to coverage in separated rooms; the switches relate to additional Ethernet connections. Check placement and provider compatibility for mesh, and do not expect a switch alone to improve Wi-Fi.
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A three-pack to consider when Wi-Fi needs to reach rooms away from the router. Check where the units can be placed and whether your intended setup can use a wired connection between them; stated coverage is not a guarantee through thick walls. Confirm the provider setup before changing its equipment.
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A three-pack to consider for Wi-Fi in separated rooms, with 2.5Gbps Ethernet stated in the product name. Check the unit positions, the connections needed for your wired devices and compatibility with your existing modem or gateway; thick-wall coverage depends on the layout.
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For adding wired connections where the router has too few sockets. If you intend to power an access point from the switch, check that device’s PoE requirements against the switch before buying. The switch itself does not extend Wi-Fi.
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For connecting more fixed devices by Ethernet without replacing the router. It does not extend Wi-Fi; if the switch must also power an access point, confirm its power capabilities and the access point’s requirements before choosing it.
Compare performance upstairs with a test near the router and, where possible, a computer connected directly by Ethernet. Ofcom advises using Ethernet to assess the broadband connection and notes that the home’s wireless link can be a bottleneck. If the connection is good at the router but weak upstairs, focus on Wi-Fi placement or an added Wi-Fi unit; if it is poor at the router too, speak to the provider before buying coverage equipment.
A mesh node may help when it can be positioned nearer the weak room, but it still needs a viable connection to the rest of the network. Ofcom says brick internal walls make whole-home Wi-Fi more difficult, and BT says disc range varies with obstructions and interference. Consider Ethernet between units if cabling is practical.
Yes, if the added equipment supports a suitable connection and operating mode for your existing router. Check its access-point or mesh setup instructions before purchase. Keeping the provider router in charge of the broadband connection avoids changing its provider-facing settings; functions available on an added device may differ by mode.
Check your provider’s connection hand-off, required WAN settings and speed requirements, as well as any voice-service or troubleshooting arrangements. Zen Internet describes an Ethernet connection from an ONT to a router, while Community Fibre specifies an RJ45 connection and DHCP for its own service. Use your current provider’s instructions rather than applying another provider’s settings.
No. A switch adds wired network ports, not Wi-Fi coverage. It can connect fixed devices or provide a wired connection to a remote mesh node or access point; a five-port switch typically uses one port for its connection back to the router.