--- title: "Wi-Fi dead zones at work | DataRoad IT" description: "Why office Wi-Fi has dead zones and how to remove them for good: a site survey, new access points and tuned channels. No-obligation proposal from DataRoad." language: en url: https://www.dataroad-it.com/en/business-wifi-dead-zones-site-survey/ source: https://www.dataroad-it.com/en/business-wifi-dead-zones-site-survey/ publisher: DataRoad IT (DataRoad - IT Services and Consulting), Portugal --- > Why office Wi-Fi has dead zones and how to remove them for good: a site survey, new access points and tuned channels. No-obligation proposal from DataRoad. # Wi-Fi dead zones at work: measure, fix and manage At a glance For decision-makers short on time. - 01 Dead zones usually come from poor network design, not a lack of equipment. - 02 A site survey with a heat map shows where and why the Wi-Fi fails before anything is bought. - 03 Reposition, tune channels, enable roaming and only then add cabled access points. ### In this article **A Wi-Fi dead zone is an area of the office with no signal or a connection too weak to work on, and it is almost always the result of poor network design, not a lack of equipment.** The reliable way to eliminate it is to measure first, with a site survey, and then correct it with well-positioned, managed access points. That way the problem is solved with data, without buying more hardware than needed. ## Why do dead zones appear in office Wi-Fi? - **Building materials** Concrete, thick walls, metal and glass block the signal. - **A single access point** Trying to cover too large an area. - **Poor placement** Equipment in a corner or shut away in a cabinet. - **Interference** From other equipment and neighbouring networks. - **Density** Too many devices competing for the same access point. ## Measure before you buy: the site survey A site survey measures the signal throughout the space, produces a heat map and shows where and why the Wi-Fi fails. It is the step that separates a designed business Wi-Fi network from one put together by trial and error. DataRoad - IT Services and Consulting carries out a [Wi-Fi site survey and coverage optimisation](https://www.dataroad-it.com/en/wifi-site-survey-greater-lisbon/) before any equipment proposal. ## Fixes, from the simplest to the most complete - **Reposition**: move access points to central, unobstructed locations. - **Optimise channels and power**: reduce interference between access points and with neighbours. - **Enable roaming**: so devices move from one access point to the next without dropping. - **Add access points**: in the areas the heat map indicates, connected by cable and PoE. In a managed network, these adjustments do not happen just once: they are reviewed continuously through access point monitoring. ## Frequently asked questions ### Will a repeater solve it? Home repeaters are a patch: they reduce speed and create unstable connections. In a business, the right solution is additional access points integrated into the same managed network. ### How many access points are needed? It depends on the area, the materials and the number of devices. The site survey shows how many and where. ### Can it be solved without building work? Often, yes, by repositioning and making use of existing cabling with PoE. The diagnosis shows what is feasible in your space. ## Next step: Wi-Fi without dead zones We run the site survey, fix the problem with well-placed, managed access points and keep the network under watch. See [business wireless network installation](https://www.dataroad-it.com/en/business-wifi-lisbon-managed-unifi-wifi-7/), [network management and structured cabling](https://www.dataroad-it.com/en/structured-cabling-installation/) and the [user helpdesk](https://www.dataroad-it.com/en/managed-it-helpdesk-portugal/). No-commitment proposal. **More than 10 workstations · support contract · remote, on-site and telephone support.** Call +351 211 459 950 * or write to sales@dataroad.pt. **Call to a Portuguese landline.* Chosen by respected and international companies ★★★★★ 5,0 · 52 Google reviews ★★★★★ 5,0 · 52 Google reviews DataRoad ## Related articles [Business Wi-FiManaged hotel networks: seasonal access, VLANs and PCI DSSHigh season fills the hotel with new staff and shared passwords. Named users, separate VLANs and access closed on the day someone leaves kee…12 October 2026 · 7 min read](https://www.dataroad-it.com/en/hotel-managed-network-vlans-pci-dss/)[Business Wi-FiHow many access points does your business Wi-Fi need?Too many access points waste budget; too few leave rooms without signal. 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[See plans and prices →](https://www.dataroad-it.com/it-unlimited/) - **Prices upfront** Essential from €395/month + VAT, Premium from €750 and Premium 365 from €1,200. - **No lock-in** Annual contract, no lock-in and no joining fees. - **Everything in writing** What is included, the scope and the price, before you sign. - **Support without counted hours** Remote and phone in every plan; on-site support from Premium. Partners and certifications DataRoad · Business networks and Wi-Fi ## One StepAhead of IT. The best network is the one nobody notices, because it never stops. Certified cabling, Wi-Fi 7 designed to the metre and every device monitored. - **15+** IT vendor certifications - **2015** designing UniFi networks - **5 ★** on Google · 52 reviews We do **IT** right. DataRoad IT Unlimited ## Does your IT depend on a single person? Documentation, inventory and one contact who answers for everything. 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