Networks and Wi-Fi — Algarve

Everything else on this site depends on this page. The cinema, the lighting control, the cameras, the vehicle charger, the solar monitoring and the heating all run over the property’s network, and all of them are judged by the owner as unreliable when what is actually unreliable is the network underneath them.

It is also the system most consistently under-specified in Algarve properties, because it is invisible until it fails and because the visible part — a router in a cupboard — costs almost nothing. iHome designs and installs the structured cabling, switching and wireless coverage of a property as engineered infrastructure, on the same drawings as the electrical installation.

Cable first, wireless second

Wireless is a convenience layer over a wired network. Where a device does not move — television, projector, control processor, camera, access point, printer, charger — it should be wired. Every device taken off the air also improves the air for the devices that genuinely need it.

The practical constraints are simple and worth knowing before walls close:

• A copper channel is limited to 100 m from the rack to the outlet, patch leads included. Long properties and separate outbuildings need either an intermediate cabinet or fibre.
• Fibre between buildings does more than cover distance: it removes any electrical path between structures with separate earths, which is the sensible choice in a region with lightning and long garden runs.
• Category matters less than installation. Cat6A supports multi-gigabit comfortably, but a well-installed Cat6 run outperforms a Cat6A run that was kinked around a corner, stapled tight or pulled past its tension limit. Bend radius and separation from power cabling are what decide real performance.
• Two outlets where you think you need one. The cost difference during construction is trivial; adding one afterwards means chasing a wall.

Everything terminates in a single rack, patched, labelled and documented. That rack is where a fault gets diagnosed in ten minutes instead of an afternoon, and it is the difference between a house that can be supported remotely and one that requires a visit for everything.

Wi-Fi: the problem is rarely coverage

Most villas we survey have a signal almost everywhere. What they do not have is usable signal, and the distinction is where the complaints come from.

The building fights you. Algarve construction — reinforced concrete slabs, thick masonry, and increasingly metallised solar-control glazing — attenuates 5 GHz heavily. A single router at one end of a house produces exactly what people describe: full bars, nothing loading. The device is still associated with a distant access point at a data rate so low that it holds the airtime everyone else is waiting for.

Mesh is a workaround for absent cable. A wireless mesh node repeats over the same radio it serves, and each wireless hop costs roughly half the available throughput. It has its place in a finished building where cabling is genuinely impossible. In a property under construction or renovation, specifying mesh instead of running cable to each access point is choosing a permanent limitation to avoid a temporary cost.

Roaming is what people actually experience. Walking from the living room to the terrace and having the call drop is not a coverage failure; it is a client device holding on to an access point long after a better one is available. Handled properly — access points at planned overlap, minimum data rates set so devices are pushed to reassociate, and the roaming assistance mechanisms in 802.11k, v and r enabled — the transition is invisible. Handled by default settings, it is the single most common complaint in large houses.

Spectrum is finite and shared with the neighbours. The 2.4 GHz band has three non-overlapping channels; in a resort or condominium, all three are crowded. Using wide 80 MHz channels on 5 GHz doubles headline speed on paper and collapses the number of available channels in practice, so in dense environments narrower channels frequently deliver more real throughput. Wi-Fi 6E and 7 open the 6 GHz band, which is clean and short-ranged — excellent for a dense modern house, and useless as a substitute for enough access points.

Which is why access point positions are decided from the plan and the construction, verified on site, and adjusted after occupation rather than assumed.

Segmentation: one network is not enough

A modern property carries devices with very different trust levels on the same wire: the family’s laptops, a dozen cameras, television and audio hardware, a heat pump, a vehicle charger, the control processor, and whatever guests bring.

Separating them into distinct network segments does two things. It keeps a compromised or simply badly-written device — and cameras and cheap smart products are frequently both — away from everything that matters. And it stops broadcast-heavy equipment from degrading the rest.

The detail that decides whether segmentation succeeds or gets abandoned is service discovery. Streaming, casting and control devices find each other with multicast protocols that do not cross between segments on their own. Done without provision for it, the result is a guest network where nothing casts and a control system that cannot see the speakers — and the usual field fix is to flatten everything back into one network. Done properly, with controlled multicast forwarding between the segments that need it and multicast handled efficiently on the switches, the isolation is invisible to the household.

This is directly what makes cameras safe to install and distributed audio and video reliable.

Power, protection and the rack

Access points, cameras, door stations and control panels are powered over the network cable, so switch power budgets are part of the design rather than an afterthought — a switch that cannot power its full complement on a hot day will drop devices seemingly at random.

The rack itself needs the same care as anything else electrical: ventilation, because a sealed cupboard in an Algarve summer will cook the equipment inside it and shorten its life significantly; surge protection on both mains and any external cable runs; and an uninterruptible supply for the network core, so that a brief cut does not take down the cameras, the alarm signalling and the remote access at once. A UPS also allows the equipment to be shut down and restarted in order, which matters more than it sounds — much of what is diagnosed as an equipment fault is the aftermath of a power cut that brought devices back in the wrong sequence.

The internet connection, and the house nobody is in

Fibre is widely available across the Algarve and is the right primary connection almost everywhere. Two aspects deserve attention in properties that stand empty for long periods.

Remote access needs a path in. Many residential connections place the property behind carrier-grade address translation, which silently prevents any inbound connection — the reason a remote-viewing app that worked at handover stops working after a router replacement. A static address, or a control platform that maintains its own outbound relay, removes the problem.

A single connection is a single point of failure. For a property that is monitored remotely and occupied a few weeks a year, an automatic cellular backup is inexpensive insurance: it keeps the alarm signalling, the cameras and the ability to diagnose anything at all alive through an outage that might otherwise last days before anyone notices.

Managed, not just installed

We install networks that can be seen into remotely: which devices are online, how the wireless is actually performing, how much of the internet connection is in use, and whether anything has failed. For a holiday property this changes the economics of support entirely — a failed access point can be identified and often restarted from Faro before the family lands, rather than discovered by them on arrival.

It also makes honest diagnosis possible. When a household reports that “the internet is slow”, the difference between a saturated uplink, a wireless problem, a single misbehaving device and an actual provider fault is a question of data, not opinion. That data is the point of a maintenance relationship.

How a project runs

1. Requirement. How the property is used, how many people, which systems will depend on the network, and what must work remotely.
2. Design. Cabling routes and outlet schedule, rack location and size, switching and power budget, access point positions, segmentation plan.
3. First fix. Cable installed and tested before walls are closed — the only moment at which this is cheap.
4. Installation and configuration. Rack build, termination and certification of every run, switching, wireless configuration, segmentation and remote access.
5. Verification. Throughput and roaming tested through the property in use, not from beside the rack.
6. Documentation and handover. Labelled rack, addressing scheme and credentials given to the owner.

Working with iHome

We have been building the technical infrastructure of Algarve properties since 2006 — electrical, network, audiovisual and control on one set of drawings, by one team. We are an official Control4 dealer and certified KNX partner, nationally awarded for our integration work.

If the property is under construction, the network is the cheapest thing on this site to get right and the most expensive to correct later. Call (+351) 289 090 900 or email geral@ihome.pt.