Networking, Wi-Fi & Fibre Optics

Technology for Hotels and Guesthouses in Zanzibar

Guests judge a hotel on the bed, the food and, increasingly, the Wi-Fi. A review that says "the Wi-Fi didn't reach our room" costs bookings, and a reception that cannot take card or mobile-money payments during a power cut costs money on the spot. Behind the scenes, the same property also needs C...

  • Zanzibar resource
  • 9 min read
  • Updated
  • Extrion Knowledge Center

Guests judge a hotel on the bed, the food and, increasingly, the Wi-Fi. A review that says "the Wi-Fi didn't reach our room" costs bookings, and a reception that cannot take card or mobile-money payments during a power cut costs money on the spot. Behind the scenes, the same property also needs CCTV, a fire alarm that actually works, and a back-office network that guests cannot reach.

This guide is for owners and managers of hotels, lodges, villas and guesthouses in Zanzibar, from a six-room guesthouse in Stone Town to a beach resort on the east coast. It explains what makes technology harder here, a sensible way to design it, and how to build it in stages.

What makes hotel technology harder in Zanzibar

Power is not steady. Power cuts and voltage swings are part of life on the islands. When the mains drops, the generator usually takes a few seconds to start, and every router, switch and recorder without a UPS reboots. Some equipment never comes back cleanly. Surges when power returns are a common cause of dead network equipment.

Salt air and humidity. Within a few hundred metres of the sea, unprotected connectors, brackets and enclosures corrode quickly. Outdoor access points, cameras and cable joints need to be rated for outdoor use (look for a suitable IP rating), with sealed connectors and stainless or coated fixings.

Thick walls. Coral-stone and concrete walls block Wi-Fi far more than the plasterboard most consumer routers are designed for. One powerful router at reception will not cover rooms two walls away, however much you pay for it.

Heritage buildings. Stone Town is a UNESCO World Heritage Site, and visible external changes to buildings there need approval from the conservation authority. Antennas, external cable runs, cameras on façades and new wall openings all count as visible changes. Plan discreet internal routing, and check with the authority before work starts rather than after.

Lightning. Outdoor cable runs between buildings, to a pool bar or to a gate camera pick up surges during storms. Earthing and surge protection are not optional on those runs.

Fibre availability varies. Parts of Unguja town have fibre; many coastal areas still depend on fixed wireless or 4G. Where fibre exists, it is usually the best primary link. Almost everywhere, a second connection on a different technology (4G or another provider) is worth having.

Seasonality. Occupancy peaks in the dry seasons and drops during the long rains. That quiet period is the best time for cabling and upgrades, but contractors and parts get busy just before high season. Spare parts are often stocked in Dar es Salaam, so a failed switch can mean days of downtime if there is no spare on site.

Guest expectations. International guests expect to stream video, join video calls and upload photos from their room and the pool. They compare your Wi-Fi with their home connection, not with other hotels on the island.

Think of the property as several separate networks sharing one set of cables and one internet connection.

Network Who uses it Key rules
Guest Wi-Fi Guests' phones and laptops Isolated from everything else; guests cannot see each other's devices; fair bandwidth limits per device
Staff and office Reception PCs, managers, accounts Password-protected; access to printers and the property management system
Payments (POS) Card terminals, POS tills Separated from guest and staff traffic; only reaches what it needs
Security CCTV cameras, recorder, access control, intercoms No internet access except for safe remote viewing; never on guest Wi-Fi
Building systems Fire alarm interfaces, PA, smart controls Kept apart; managed only by authorised people

On a business-grade router and managed switches, these are separated with VLANs (virtual networks). One cable can carry several of them, so you do not need five sets of cables.

The physical layer

  • A small central rack in a cool, dry, lockable room, holding the router, core switch and CCTV recorder, all on a UPS.
  • Managed PoE switches that power access points and cameras over the network cable, so the UPS keeps them running too. Use our PoE budget calculator to check the switch can supply all of them.
  • Ceiling or wall access points placed close to where guests actually use their devices: in or right outside rooms, not just in corridors. In coral-stone buildings, plan on an access point per room or per small group of rooms.
  • Fibre between buildings rather than copper. It does not carry lightning surges, and it covers longer distances than network cable's 100-metre limit. See Network Planning for Large Properties for resort-scale layouts.
  • Two internet connections with automatic failover, so guests stay online if one provider fails.

For the trade-offs between consumer mesh kits and centrally managed access points, see Mesh Wi-Fi vs Managed Access Points.

Safety and security systems

  • CCTV at entrances, reception, the cash point, car park, store rooms and staff entrances. Not in rooms, bathrooms or changing areas. Guidance on camera choice is in CCTV Cameras Explained.
  • Fire detection appropriate to the building, from smoke detectors in each room to an addressable panel in a larger hotel. See /fire-alarm-systems and Conventional vs Addressable Fire Alarms.
  • Public address for background music and evacuation announcements in larger properties: /public-address-systems.
  • Guest-to-reception communication, such as room phones or call points for villas and accessible rooms.

Extrion has not yet published a hospitality project, so we will not pretend otherwise. The engineering is the same as on our hospital work, where we installed LAN, fibre, CCTV, fire, public address and nurse-call systems in occupied, 24-hour buildings, for example the Pediatric Hospital at Mnazi Mmoja and the Mental Hospital at Kidongo Chekundu. A hospital ward and a hotel corridor face the same problems: people sleeping, systems that must never go down, and safety systems that must be reliable.

Phased options

You do not have to do everything at once. A practical order:

Phase 1: Essentials (any size)

  • Business-grade router with separate guest and staff networks.
  • UPS on the router, main switch and recorder; surge protection on the incoming line.
  • A second internet connection (often 4G) with failover.
  • CCTV on entrances, reception and the cash point, with safe remote viewing (see View CCTV on Your Phone Safely).
  • Working smoke detection in every room.

Phase 2: Proper coverage

  • Structured cabling to every room or room cluster, terminated in a labelled patch panel.
  • Centrally managed access points with room-level coverage, plus outdoor-rated units at the pool, restaurant and garden.
  • VLANs for POS, CCTV and building systems.
  • A guest portal (terms acceptance or a room code) and per-device bandwidth limits.

Phase 3: Resort scale

  • Fibre backbone between blocks and villas, with distributed switches on UPS.
  • Addressable fire alarm, PA with zoned evacuation messages, and guest call points.
  • Access control on staff areas and store rooms.
  • Monitoring that alerts you when an access point, camera or connection goes down, before a guest complains.

Not sure where you stand? The network readiness check gives you a quick score.

Hotel technology checklist

  • Walk the property with a phone and note every room or area with weak or no Wi-Fi.
  • Confirm guest Wi-Fi is separated from staff, POS and CCTV networks.
  • Check that guests cannot see each other's devices (client isolation).
  • Put the router, switches and recorder on a UPS, and test it by switching off the mains.
  • Install surge protection on the incoming line and on outdoor cable runs.
  • Arrange a second internet connection and test failover.
  • Check outdoor equipment for corrosion, loose seals and water inside enclosures.
  • Confirm CCTV covers entrances, reception and the cash point, and records for as many days as you need. Use the CCTV storage calculator.
  • Change all default passwords; give staff their own accounts.
  • Test smoke detectors and the fire alarm on a schedule, and log the results.
  • Keep spare parts on site: at least one access point, one PoE switch and patch cables.
  • Label every cable at both ends and keep an up-to-date network diagram.
  • In Stone Town, confirm conservation approval before any visible external work.
  • Schedule upgrades for the low season and book your installer early.

Common mistakes we see

  • One big router at reception. It cannot push through coral-stone walls. Coverage comes from more access points closer to guests, not more power.
  • Consumer equipment in a 24-hour business. Home routers are not designed for dozens of simultaneous guests and often hang after power cuts.
  • Guests and the CCTV recorder on the same network. Anyone on guest Wi-Fi may be able to find the recorder's login page.
  • No UPS on the network. The generator starts, but every device has rebooted and some need a manual restart.
  • Copper cable between buildings. It is the path lightning takes into your rack.
  • Indoor equipment outdoors. Indoor access points at the pool bar rarely last a year in salt air.
  • No documentation. When the original installer leaves, nobody knows which cable goes where or what the passwords are.
  • Upgrading in high season. Work is rushed, rooms are occupied and parts take days to arrive from Dar es Salaam.

Warning Do not open the fire alarm panel, work on mains wiring or climb onto roofs to fix cameras or antennas yourself. Use a qualified electrician or installer, with proper ladders or access equipment.

Relevant Extrion services

More on our work for the sector is on the hospitality and tourism page.

Frequently asked questions

How many access points does a small guesthouse need?

It depends on the walls more than the floor area. In a coral-stone building, expect roughly one per room or per two adjacent rooms, plus one for each outdoor area guests use. A site survey gives a real number.

Can guest Wi-Fi and staff Wi-Fi run on the same equipment?

Yes. Business access points broadcast several networks at once, and VLANs keep the traffic separate all the way to the router.

Is 4G good enough as a backup connection?

For most guesthouses, yes, as long as signal is good at the property. Check signal strength from more than one mobile network before choosing.

Can we run cables in a Stone Town building without visible changes?

Often, with careful internal routing, but every building is different. Check with the conservation authority before any work that could alter the building's exterior.

When is the best time to upgrade?

During your quietest months, usually the long rains, with planning and ordering done well before.

When to call Extrion

If guests complain about Wi-Fi, your equipment keeps failing after power cuts, or you are planning a new property, Extrion can survey the site and design a network that suits it. See our network architecture service or contact us to arrange a visit.

This guide is general information to help you plan. Prices, product features and regulations change, so confirm the details for your own site before you buy.

Still stuck, or want more detail?

Ask for clarification, tell us a problem this did not solve, or suggest a topic. An engineer reads every message, and we use them to improve the Knowledge Center.

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