WiFi in your holiday rental: what speed do you need, what router to install, and how much does it really cost to do it right

WiFi is one of the three factors that most influence a review of a holiday rental, along with cleanliness and the mattress. Yet, many owners still install the €20 router given by their provider five years ago, hoping it will last. In this post, I explain what internet speed you really need, which router is worth it, how to cover the entire house without dead zones, and how much everything will cost you. With real numbers.

Why WiFi is so important (more than you think)

Guests no longer come just on vacation to disconnect. They come to work remotely, watch Netflix at night, make video calls with family, upload videos to Instagram. A couple with two phones, a laptop, and a tablet can have 6 devices connected at once. Add grandparents, and we reach 10.

And here’s the problem: when WiFi goes bad, they don’t complain immediately. They complain in the review. And "WiFi was terrible" in an Airbnb review lowers your ranking, reduces your bookings, and decreases the price you can ask.

It’s one of the typical mistakes of novice owners: saving €10 a month on internet and losing €200 in bookings.

Note to consider: according to several Airbnb and Vrbo studies, WiFi appears among the top 5 factors mentioned in negative reviews. And it’s among the top 3 most searched features by digital nomads, who pay higher rates.

What internet speed do you need

Let’s get practical. You don’t need the 1 Gbps fiber promoted by your provider. But the 50 Mbps ADSL is also not enough.

Recommended speeds based on property type

Property Type	Capacity	Minimum recommended speed
Studio or 1-bedroom	2 guests	300 Mbps symmetrical
2-bedroom	4 guests	500 Mbps symmetrical
3+ bedrooms	6+ guests	600-1000 Mbps symmetrical
Large country house	8+ guests	1 Gbps symmetrical

The key here is the word "symmetrical". It means upload speed equals download speed. This is critical for video calls, uploading photos to the cloud, or live streaming.

Be careful with "1 Giga" offers that are actually 1 Gbps download but only 300 Mbps upload. In Spain, almost all fiber providers (Movistar, Vodafone, Orange, Digi) now offer symmetrical plans by default, but check the contract.

What if there’s no fiber in your area?

This can happen, especially in rural houses or small villages. You have three options:

• Fixed 4G/5G: providers like Vodafone, Orange, or Movistar offer 4G routers with unlimited plans. Actual speeds between 50 and 200 Mbps. Enough for 2-4 guests if not intensive.
• WiMAX or radio internet: local companies providing coverage in rural areas. Speeds between 50 and 300 Mbps.
• Starlink: Elon Musk’s satellite internet. Expensive (about €50 per month plus router) but works anywhere.

Which router to install (and which not to)

The router provided by your provider is usually mediocre. It works, but if your house is over 70 square meters or has thick walls, you will have dead zones.

Options based on budget

Option 1: Provider’s router + repeater (low budget)

If you have a small apartment and the signal is good, it might suffice. If there are weak zones, add a WiFi repeater for €30-50 (e.g., TP-Link RE505X).

Cost: €0 (router included) + €40 repeater.

Option 2: Mesh system (medium budget, recommended)

A Mesh system consists of multiple nodes creating a single WiFi network throughout the house. Guests connect once and move seamlessly between nodes. No different passwords, no cuts.

• TP-Link Deco X20 (pack of 3 units): €150-180. Covers up to 200 m².
• Asus ZenWiFi AX (pack of 2 units): €250-300. More powerful, ideal for large houses.
• Google Nest WiFi: €200-250. Easy to set up.

Disable the WiFi on the provider’s router and connect the Mesh via cable. It works much better.

Option 3: professional router (high budget, large houses)

If you have a rural house of 300 m² or multiple floors, consider a solution like UniFi (Ubiquiti). You need someone to install it, but the difference is noticeable. Cost: €400-800 including installation.

What to avoid

• €25 generic routers. They crash, overheat, guests unplug them thinking they’re broken.
• Cheap chain repeaters (a repeater of a repeater). You lose speed and stability.
• Hiding the router behind a closet. It needs ventilation; signals get blocked.

Coverage: how to cover the entire house

Think like a guest. They will use WiFi in the living room watching Netflix, in the bedroom before sleeping, in the kitchen listening to music, and on the terrace having a drink. All those areas need coverage.

Practical steps

1. Place the central router high and open. Never inside a closet or behind the TV.
2. If you have multiple floors, put a Mesh node on each floor.
3. Terrace or garden: a node near the window is usually enough. If you want strong outdoor coverage, there are outdoor Mesh nodes (TP-Link Deco X50 Outdoor).
4. Test with the manufacturer’s app. Almost all modern Mesh systems (Deco, Nest, Asus) have an app that shows if the signal reaches each zone well.

WiFi password: common mistakes seen daily

Leaving the default password from the router sticker is a classic mistake. Don’t do it. Set a simple but personalized password.

Recommendations

• Create a guest network separate from your personal network (if you have personal devices connected at home).
• Easy-to-type password: avoid strange symbols. Something like "WelcomeHome2024" is perfect.
• Put the password on a laminated sign in the kitchen or living room. Also include it in the welcome manual sent before arrival.
• If you use QR codes for WiFi (guests scan and connect automatically), even better. Free online generators are available.

What about a separate network for smart home or security devices?

If you have smart locks, cameras, or connected thermostats, create a dedicated WiFi network for them. Guests won’t see or accidentally tamper with them.

How much does it cost to do it right (realistic budget)

Let’s put numbers for a typical 2-bedroom holiday apartment, 80 m².

Concept	Initial cost	Monthly cost
Symmetrical fiber 500 Mbps	€0 (free setup)	€30-40
TP-Link Deco X20 Mesh system (3 nodes)	€170	-
Signs with password + QR	€5	-
Total first year	€175	€360-480/year

That is: for about €500-650 in the first year, you get WiFi that won’t give you problems for at least 5 years. Spread over annual bookings, it’s cents per night.

And compare it to losing a 5-star review due to poor WiFi (which can cost you €300-500 in lost bookings), the math is clear.

How to present WiFi to guests

It’s not enough for it to work. You need to communicate it well:

• In the listing: say "High-speed WiFi (500 Mbps symmetrical)." Digital nomads filter by actual speed.
• In the welcome manual: password, network, and QR code.
• In the house: visible sign.
• If you have a workspace: photo in the listing of the workspace corner with the router/node nearby.

This detail also helps you better position your listing compared to those that don’t mention it.

What to do if WiFi fails during a stay

It will happen sooner or later. Have a protocol:

1. Easy restart instructions in the manual: "if it doesn’t work, unplug the router for 30 seconds and plug it back in."
2. Quick contact info for the provider: keep it handy to call if the problem persists.
3. Plan B: have a SIM card with data or a backup 4G router. For €20-30 per month (or pay-as-you-go), you avoid a negative review.
4. Compensation: if WiFi is down for more than 24 hours, offer a discount or compensation. The guest will remember it positively.

How Autoregistro fits in

Legal obligations don’t fall behind when it comes to technology in your property. Just as you need to provide good WiFi, you must comply with the traveler registration in SES Hospedajes within 24 hours of check-in.

Autoregistro automates this for €1 per month per property (less than a coffee): guests fill out an online form before arrival, and data is sent automatically to SES Hospedajes. You focus on improving WiFi, amenities, and reviews. The paperwork is done.

Frequently asked questions

Can I set the WiFi in the operator’s name with a business or second residence plan?

Yes, but it’s usually more expensive and offers fewer features. Most owners contract regular residential plans without issue. However, if it’s a second residence, some providers require a minimum consumption or charge installation fees.

Is it legal to limit bandwidth or block websites for guests?

Limiting bandwidth is common to prevent abuse. Blocking specific websites is also possible, but be careful not to block legitimate services (Netflix, social media) without informing guests. You must block illegal content by default. If someone uses your WiFi for illegal activities, you could be held responsible, so blocking P2P and torrent downloads is recommended.

Do I have to provide internet by law?

It’s not a legal obligation, but practically, yes. Without WiFi, your listing doesn’t compete. Some regional regulations require it, but most don’t. Still, don’t consider not providing it.

Is it advisable to set up guest WiFi with a redirect page?

It depends. For small accommodations, it might be unnecessary. If you have an entire building or multiple properties on the same network, a captive portal (like UniFi offers) is worth it. For a normal apartment, a simple password suffices.

How many devices can a normal router support?

Modern Mesh routers support between 50 and 150 devices without issues. The basic provider’s router starts to struggle with 15-20 devices connected simultaneously. That’s why for more than 4 guests (who might bring 10 devices), Mesh is almost mandatory.