Mesh Wi-Fi works well in a Cork home when the units are close enough to hear each other clearly and no device is more than two wireless hops from the router. Where a unit has to shout through stone walls or across a long bungalow, one data cable or a wired access point fixes what no amount of moving the units will.
Plenty of Cork households already own a mesh kit. Some love it; others find the far bedroom or the converted garage still drops out. In most cases the kit is fine and the layout is the problem. This guide is for both groups: how to get the most out of the mesh you have, and how to tell when it is time to wire.
Why mesh Wi-Fi slows down at the far end
A mesh unit that is not cabled to the router has two jobs at once. It talks to your phones and laptops, and it relays all of their traffic back through the next unit towards the router. That relay link shares the same airwaves. Ubiquiti, whose UniFi access points we install, puts it plainly in its guide to considerations for optimal wireless mesh networks: "Every wireless 'hop' between APs reduces available throughput."
The same guide recommends a maximum of two wireless hops, a signal of at least minus 60 dBm between a meshed unit and the one it connects to, and placing meshed units closer to a wired one. It also says that hardwiring access points is the ideal method for the highest performance and stability. Those are useful rules for any brand of mesh, not only Ubiquiti.
Five rules for placing mesh units
- Start from the router, not the problem room. The second unit goes roughly halfway between the router and the dead spot, where the signal is still strong, not in the dead spot itself.
- Keep units in the open. On a shelf or a hall table at about head height, never behind the TV, inside a cabinet or on the floor beside a radiator.
- Use the stairwell. In a two storey house, one unit near the bottom of the stairs and one on the landing often link better than two units in rooms with a floor between them.
- No chains of three or four. If reaching the far room needs a third wireless hop, it needs a cable instead.
- Turn off the other Wi-Fi. The broadband router's own Wi-Fi and any old extenders should be switched off, so the mesh is the only network in the house.
Cork houses and mesh Wi-Fi: what to expect
| House | Mesh Wi-Fi on its own | Usual improvement |
|---|---|---|
| Dormer bungalow or long single storey house | Struggles at the far gable, where the units are too far apart | One cable along the attic to the far unit, or a ceiling access point there |
| Victorian or Georgian house, Montenotte, Sunday's Well | Thick walls block the links between rooms | Wired access points, planned with the existing cable routes |
| Newer family home, Douglas, Rochestown, Carrigaline | Often fine with two or three units in open areas | Wire one unit if a cable already reaches the living room |
| Coastal or country house, Kinsale, Crosshaven, West Cork | Stone walls and outbuildings well out of range | A wired network, with a link to the garage, studio or annex |
| House with a garage conversion or annex | The annex sits behind an old external wall | An access point in the annex, cabled or bridged |
The one cable that changes everything
You do not have to rewire the house to fix a weak mesh. Most good mesh kits let you connect a unit to the router by cable, known as wired backhaul. Do it for the unit furthest away and that unit stops sharing its airtime with the relay, which usually brings the biggest single gain.
In a bungalow the cable can often run through the attic and drop down an internal wall. In a two storey house it can follow an existing route, such as the one used by the TV aerial or the alarm. Where no route exists, the next step is a proper wired network of access points, which we install as part of our Wi-Fi and networks service.
When building work is coming
An extension, a new kitchen or a rewire is the best time to put a data cable in each ceiling where an access point will go. Our guide to smart home wiring for a Cork renovation or extension covers what to run before you plaster, and for a new house our free Wi-Fi design for self builders plans it from your drawings. For how many access points different sizes of home need, see our access points guide.
Signs your mesh is not the problem
- The Wi-Fi is fast beside the router but the internet is still slow everywhere: that is the broadband line, not the Wi-Fi.
- Only one device struggles: it may be an older device that cannot use the newer, faster bands.
- Everything stops at the same time each evening: neighbours' networks or a busy channel can be the cause, and a managed system can move away from them.
A survey sorts these out quickly. We measure the signal room by room, check the line and the router, and tell you whether the mesh you have can be made to work or whether it is time for wired access points. A visit is €440 plus VAT covering up to four hours, as set out on our smart home cost page.
Our Cork team covers the city and county, plus Kerry, Waterford and Limerick. See our Cork page for the areas we serve, and 1Install Care for ongoing support once the network is in.
Questions we are often asked
How many mesh units does a Cork bungalow need?
It depends on the length more than the floor area. A long bungalow often needs three units, or two with the far one cabled.
Can mesh Wi-Fi reach a garage or garden room?
Sometimes, if a unit can sit near a window facing it. A cable in a duct or a wireless bridge to its own access point is more reliable.
Can I mix brands of mesh units?
We do not recommend it. Units from one family work together far more reliably.
Is a powerline adapter a good way to link mesh units?
It can help where no cable is possible, but results vary from house to house. A proper data cable is always the better link.
Will wired access points work with my smart home?
Yes. Lighting control, audio, cameras and TVs all benefit from a stable wired network, which is why we plan the network as part of a smart home project.
If your mesh Wi-Fi still leaves rooms without a signal, we will look at it with you and recommend the smallest change that fixes it.
Book a consultation or call our Cork office on 021 202 8107.
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