The most reliable internet solution on board an inland vessel in 2026 is a combination of Starlink and 4G/5G, bonded through a router such as the Teltonika RUTX50. This setup gives you coverage where there is no mast and failover when one connection drops. If you sail only on busy corridors, a 4G/5G router with an external antenna will do. If you regularly sail quiet stretches, Starlink fills the dead spots. In this article we compare the three options on coverage, cost, power draw and suitability per type of skipper. We also explain how we supply, fit and manage such a setup for you.
Why internet on board is harder than at home
At home you have a fixed line and a mast around the corner. On the water everything changes constantly. You are moving, so your router has to keep finding a connection again. Along quiet stretches, in nature reserves, at locks and in border regions there are gaps in the mobile network. And your power is limited: every watt counts on a battery or solar panel.
A good solution accounts for three factors: reach while under way (not just in the harbour), reliability (no connection dropping mid-upload or mid-video-call) and power draw (what you can run 24/7 on board). A solution that works fine at home often stalls on the water.
The three options side by side
1. 4G/5G mobile internet: the baseline
A 4G/5G router with one or more SIM cards turns the mobile network into wifi on board. With a dual-SIM router you switch automatically to another network as soon as one provider has no signal. An external antenna on the mast or wheelhouse extends reach considerably. Count on 3 to 8 km of extra range, depending on the terrain.
Advantages: relatively cheap (from around €250 for a decent router with external antenna, €15-35/month for data), simple to install, and in populated areas fast enough for admin, video calls and streaming.
Drawback: you stay dependent on masts. On quiet rivers, at locks, in floodplains and just across the border there are gaps. For anyone sailing mainly on busy corridors (Albert Canal, Sea Scheldt, Scheldt-Rhine Canal or towards Antwerp and Liège) this is fine. Go further afield and you run into the limits.
From practice: among clients sailing fixed Belgian trunk routes such as the Albert Canal, the Sea Scheldt and the Scheldt-Rhine Canal, we see a good dual-SIM setup with an external antenna work faultlessly 90% of the time. The pain sits in the other 10%, often at exactly the wrong moment: mid-video-call at a lock, or on a border stretch where the Belgian SIM jumps to a Dutch, German or French network and the data bundle dries up. For sailing within Belgium on fixed routes, 4G/5G is the sober choice; cross borders regularly and you feel the limits sooner.
2. Starlink: satellite internet
Starlink uses a network of more than 7,000 satellites in low Earth orbit (550 km altitude). The big advantage: coverage where there is no mast. The antenna finds the satellites within about ten minutes and then delivers speeds of 50 to 200 Mbit/s, on open water and in remote sailing areas too.
For inland shipping there are two routes:
Starlink Roam with the Mini dish, the entry-level track. The Mini antenna costs around €249, the Mini Roam subscription in Europe starts near €40/month for 50 GB, with a Regional plan around €59/month for unlimited data within Europe. Since early 2026 the data allowances have been widened and the Mini hardware has dropped sharply in price. You can also put your account on Standby (around €5/month) for unlimited low-speed internet as a fallback. Note: Roam is formally a land plan. Use on the water and in motion strictly falls outside it. In practice many recreational and smaller professional skippers use Roam without trouble, but check the terms for your situation. If you want a fixed, more stable setup on board, the Standard dish below is the better choice.
Starlink Standard with the Residential subscription. This is the setup we supply and fit. The Standard dish costs around €299 (well down from the old €499) and the Residential subscription in Belgium sits around €50/month including VAT, with unlimited data. The larger dish catches more sky than the Mini and therefore delivers a steadier connection, including in swell and with less than ideal sightlines. For a vessel that needs permanent internet on board, this is the more robust and still affordable choice.
Power draw: after the January 2026 firmware update the Starlink Mini uses around 16 to 20 watts in active use, around 15 watts idle, with a brief peak of up to 60 watts at start-up; over 24 hours that is 400 to 500 Wh per day. The larger Standard dish we fit draws more, around 75 watts on average, so count on roughly 1.8 kWh per day. That is manageable on a well-planned power supply with solar panels or shore power, but it is the main trade-off between Standard and Mini: you exchange a little extra draw for a steadier connection. Either way, factor it into your energy balance.
From practice: two things we always impress on clients. One: that quoted ten-minute start-up only holds with genuinely clear sky. Mount the dish too close to a radar dome or the VHF antenna and you get short, irritating dropouts that are hard to trace. Which is why we keep at least 50 cm of clearance as standard. Two: do not underestimate the power question. On vessels with a tight battery bank especially, we do not hang the Starlink straight off a fluctuating ship's supply, but off a proper DC-DC converter.
3. The combination: Starlink + 4G/5G with bonding, the professional solution
This is where the real gain sits for anyone who has to be online at all times. You combine Starlink and 4G/5G internet in one router, for example a Teltonika RUTX50 or Teltonika RUTX14. With failover and load-balancing you bundle both connections into one reliable line, or you let the router switch over automatically the moment the primary connection drops (hot failover).
The result: if the Starlink drops through a power cut or a short break in the satellite signal, 4G/5G takes over seamlessly. When the Starlink comes back online, the router switches back by itself. No dropped video call, no interrupted upload of cargo papers.
This is the setup shipping companies, commercial skippers and fleet managers choose. The extra hardware investment (a Teltonika router costs €400-1,200 depending on the model) pays itself back in reliability: your connection no longer hangs on a single technology.
From practice: the gain from bonding is not more speed but the fact that you never notice anything switching. At clients we set the Teltonika up so Starlink is primary (widest coverage, quiet stretches included) and 4G/5G steps in automatically when the Starlink drops, through a power cut or a short break in the satellite signal. Afterwards you see the seamless switchovers in the logs that nobody on board noticed. That is what you are paying for.
4G/5G, Starlink or the combination: a quick comparison
| 4G/5G | Starlink | Combination (bonding) | |
| Coverage under way | Variable, gaps at locks and near borders | Almost everywhere with clear sky | Best of both, no gaps at all |
| Speed | 50-300 Mbit/s in populated areas | 50-200 Mbit/s, remote areas too | Combined, steady |
| One-off cost | From €250 (router + antenna) | €249 (Mini) to €299 (Standard) | €1,000-2,000 (router + antenna(s)) |
| Monthly cost | €15-35 (data bundle) | €40-50 (Roam or Residential) | €55-85 (data + Starlink) |
| Power draw | 5-15 watts | 16-20 watts (Mini), ~75 watts (Standard) | 25-90 watts total |
| Complexity | Low, plug and play | Medium, mounting and aiming the dish | Higher, configuration pays off in peace of mind |
| Suits | Fixed corridors, tight budget, recreational | Often under way, remote stretches | Always online, business critical, fleet management |
Prices are indicative as of July 2026. Starlink adjusts its rates regularly. Check starlink.com for the current position.
Installation: how do you fit internet on board?
Installation differs per solution, but a few principles always apply.
Antenna placement: mount the external antenna (4G/5G) or Starlink dish as high as possible with clear sky all round. On an inland vessel the wheelhouse roof is the most common spot. The Starlink Mini is compact enough (30 × 26 cm) to sit alongside radar or VHF equipment. Keep at least 50 cm from other antennas to avoid interference.
Cabling: an ethernet cable (Cat6, UV-resistant for outdoor use) runs from the antenna to the router inboard. We make this cable to measure, in whatever length you need, so it follows the route on your vessel exactly with no surplus loops. We use cable trunking or watertight glands where the cable comes inboard. The router itself goes somewhere sheltered in the wheelhouse or engine room, out of sun and damp.
Power supply: connect the router and Starlink to a stable 12V or 24V supply. Use a DC-DC converter if the ship's voltage fluctuates (which it does on many vessels). Count the draw into your daily energy budget: a combined setup pulls 25-35 watts continuously, which is 600-850 Wh per day.
Configuration: with a simple 4G/5G router configuration is plug and play: SIM in, switch on, set the wifi name. With a bonded Teltonika setup a one-off configuration is needed through the RMS management panel: setting WAN priorities (Starlink primary, 4G/5G as backup, or the other way round), enabling failover, and creating a guest network for the crew. That takes 30-60 minutes if you know what you are doing, or have the supplier set it up.
Safety and regulation
Internet on board also opens a network you will want to protect. A few points to watch:
Secure your network. An open or poorly configured wifi network is a risk, certainly with business systems hanging off it (charts, admin, cargo documents). Use a router with a built-in firewall. Create a separate guest network for the crew, kept apart from the business network. Change default passwords. Keep firmware up to date.
Account for local rules. Britannia P&I Club, a well-regarded marine insurer, warned explicitly in early 2026 about Starlink use in Chinese waters: China does not permit the service and vessels risk fines. This does not arise for European inland shipping, but it illustrates that satellite internet has a legal side as soon as you sail outside the EU.
Tankers carrying dangerous goods: mind the explosion hazard zones. If you carry dangerous goods, ADN applies (the European agreement on the carriage of dangerous goods by inland waterways). It designates explosion hazard zones around the cargo area in which electrical equipment must meet strict requirements, among them certified (ATEX, "recognised safe") construction, the right IP protection against dust and water and a suitable temperature class. Ordinary consumer equipment such as a Starlink dish or a router does not belong there. In practice we therefore place this equipment outside the designated hazard zone, usually aft, where the vessel normally falls outside that zone. Exactly what lies inside or outside the zone on your vessel depends on the vessel type and the equipment list. So we look per vessel at what the regulations allow and always match the placement to that, so the installation both works and complies.
EU roaming with 4G/5G. With a Belgian SIM in the Netherlands, Germany or France EU roaming applies, but the included data bundle for use abroad is often limited (for instance 10 GB of the 40 GB). For skippers who structurally cross borders, a dual-SIM router with a local SIM from the country of navigation is often cheaper than roaming.
What we supply and fit for you
We supply, install and manage these setups completely, from advice on the right hardware to the physical mounting on board and the configuration. You never have to work out router settings or align antennas yourself.
In practice we go about it like this:
- Advice for your sailing area. We look at where you sail, how dependent you are on a stable line and how much power you can spare on board, and recommend 4G/5G, Starlink or the combination on that basis. Not a standard package, but what fits your vessel.
- Supply of the hardware. Router (a Teltonika RUTX50/RUTX14, for instance), antennas, cables, connectors and the right power supply, as one matched whole.
- Professional fitting on board. Mounting the antenna in the best possible position, watertight glands, tidy cabling and a sheltered spot for the router.
- Configuration and security. Setting WAN priorities and failover, a segregated guest network for the crew, firewall on, default passwords replaced and firmware current.
- Remote management and monitoring. Through central management we keep an eye on whether your connection stays healthy and can adjust remotely, so a fault is fixed before it bothers you.
That gives you a setup that works not only on installation day, but months later too, without you having to look after it.
Which choice suits you?
Single skipper, fixed routes, tight budget: a 4G/5G router with dual SIM and external antenna. Investment from €250 one-off and €35-60/month. Simple, affordable, and enough on busy corridors.
Often under way, remote sailing area, streaming on board: Starlink. For a permanent setup on board we supply and fit the Standard dish with the Residential subscription. Investment around €299 one-off and about €50/month. The compact Mini (Roam) remains an option for travelling light and flexibly, from €249 and €40/month.
Business-critical internet or fleet management: Starlink plus 4G/5G with bonding and failover. Investment €1,000-4,000 one-off and €50-275/month. With central management and monitoring so you are never without a connection, not even at the wrong moment.
To close
Reliable internet on board is well within reach in 2026. 4G/5G is the affordable baseline, Starlink fills the dead spots, and combining the two gives you a connection that does not drop when it matters. The right choice depends on your sailing area, your budget and how dependent you are on a stable line.
Not sure which setup fits your vessel or fleet? Get in touch and we will advise on, supply and fit an installation that matches your sailing area, security and remote management included, so you simply stay online under way.
Last updated: July 2026. Prices and Starlink plans change regularly. Check starlink.com for current rates.
Frequently asked questions
Yes. For a permanent setup on board we supply and fit the Starlink Standard dish with the Residential subscription; it catches more sky and gives a steadier connection. The compact Mini with Roam is a lighter option for recreational use. Roam is formally a land plan, so check the terms if you use it commercially and in motion on the water.
Count on two costs: the antenna once, and the subscription monthly. The Standard dish we fit costs around €299, the compact Mini around €249. The Residential subscription in Belgium sits around €50/month including VAT, the Mini Roam plans around €40/month for 50 GB. Starlink adjusts its prices regularly, so check the current rate at starlink.com.
Virtually everywhere the antenna has clear sky, including where 4G/5G drops out. The dish finds a connection within about ten minutes. Some countries apply geofencing which can cut the signal on inland waters, but within Europe that is rarely a problem.
It depends on your sailing area. 4G/5G is cheaper and fast in populated areas, but has dead spots at locks, in nature reserves and just across the border. Starlink covers exactly those gaps, but costs more and draws power. For the most dependable connection, combine both with bonding.
Not strictly necessary, but the combination is more reliable. With a bonding router (a Teltonika RUTX50, for instance) you bundle both connections or let the router switch over automatically. If the Starlink drops through a power cut or an interruption, 4G/5G takes over.
That depends on the dish. The Standard dish we fit draws around 75 watts on average, roughly 1.8 kWh per day. The compact Mini uses around 16 to 20 watts in active use, around 15 watts idle, with a brief peak of up to 60 watts at start-up, so 400 to 500 Wh per day. Both are manageable on a decent power supply, provided you factor them into your battery or solar calculation.
Yes. The router turns the connection into a wifi network on board that everyone can join. If you also run business systems on board, use a separate, segregated guest network for the crew and a router with a built-in firewall.
With 4G/5G you need EU roaming outside Belgium; mind the included data bundle per country, because data abroad is often limited. Starlink works across borders as long as your subscription covers roaming and the service is active in that country. On the Rhine towards the Netherlands and Germany, a combination of Starlink and a local SIM is therefore especially handy.
Yes. We supply the complete setup, mount the antenna and router on board, configure failover and security, and manage the connection remotely. You never have to work anything out or install anything yourself.