Starlink WAN Aggregation: Combine Starlink with 4G/5G Cellular, Ethernet and Wi-Fi

Speedify Combines Starlink with Your Other Internet Connections for Business Networks

WAN aggregation, also called WAN bonding, means using several internet connections at once as if they were one faster internet connection. Speedify does this in software for businesses on Starlink: it uses your Starlink internet connection together with 4G/5G cellular, wired broadband and Wi-Fi, and if one of them drops, it switches your traffic to the others automatically. With Starlink as the only internet connection, Speedify works as an encrypted VPN and has nothing to aggregate. If you are comparing products, see this WAN aggregation software buyer’s guide.

You don’t need a special appliance: Speedify runs on the computers you already have, or on a router for the whole site. Contact Us to plan your setup.

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How Speedify combines internet connections on any hardware

A walkthrough of the protocol, the per-packet distribution model, the failover logic and the encryption layer in one detailed explainer, plus the architecture and engineering tradeoffs that make Speedify different from a load balancer or a regular VPN.

Get started with Speedify for your business

Speedify offers three commercial paths. They work together, and most enterprise customers use two or more.

01

Speedify Teams

Faster, more reliable internet for everyone in your business, managed from one dashboard.

Speedify on every supported OS for every team member


Centralized dashboard for billing, user provisioning, and usage analytics


CSV import/export and a RESTful management API

View plans →

02

Speedify for Routers

Run Speedify on hardware you already own, or buy a Powered by Speedify router with it preinstalled.

License for supported OpenWrt routers


Powered by Speedify hardware lineup ready to deploy out of the box


Miri, GL.iNet and other partner models


Covers every device on the network, with no per-device install

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03

Embed Speedify into your product

Add Speedify's ability to combine internet connections to your own product. For OEMs, software vendors and hardware manufacturers that ship connectivity as a feature of their own product line.

A · DIY

Build it yourself with the Speedify SDK.

Integrate Speedify into your iOS, Android, Windows, macOS, Linux or QNX product. Full developer documentation, sample code and supported integration paths. Your team owns the build, and the Speedify SDK handles combining the internet connections.

Developer Docs →

B · CUSTOM ENGINEERING

Have the Speedify team build it for you.

The Speedify engineering team delivers custom integration work, deployment architecture and protocol-level customization, built to your spec and your timeline by the people who built Speedify.
Contact Us →

What WAN Aggregation Means for a Business on Starlink

A WAN connection is simply an internet connection coming into your site: Starlink, a cable or fiber line, or 4G/5G cellular. WAN aggregation adds them together. For a business with Starlink and other internet connections, Starlink’s speed then adds to the speed of the others, instead of Starlink being a separate internet connection that each device either uses or doesn’t.

Many routers that take several internet connections send each download, call or app session over just one of them. Different sessions go over different internet connections, so the total speed goes up, but one video call or one upload still only gets the speed of one internet connection.

Speedify splits the data of each session across all your internet connections at once. A single video upload, video call or live stream gets speed from every internet connection at the same time, so your team gets close to the combined upload and download speed of all of them, not just the speed of one.

For example, if Starlink gives your business 150 Mbps, a wired broadband line gives 100 Mbps and 4G/5G cellular gives 80 Mbps, that’s 330 Mbps in total. In good conditions, Speedify can give a single session nearly all of those 330 Mbps. These are example figures, not measurements.

Combine Starlink with Your Other Internet Connections Using Speedify

Speedify sends all your internet traffic, encrypted, through a Speedify server (see how Speedify combines internet connections). Along the way, Speedify checks the speed, delay and lost data on each internet connection many times a second, and spreads your traffic across all of them based on how each one is doing right now.

What that means in practice:

  • One session uses every internet connection. The data from a single download or call goes over several internet connections at the same time. The Speedify server puts it back together in the right order, so your apps see one fast internet connection.
  • Speedify shifts traffic away from a slow Starlink. When the Starlink network is busy and the delay goes up, Speedify sends less over Starlink and more over wired broadband or 4G/5G cellular, on its own. When Starlink recovers, Speedify shifts traffic back.
  • Sessions keep going when an internet connection fails. When one internet connection drops completely, the data it was carrying moves to the others, in milliseconds according to Speedify. Calls carry on, and because your traffic still leaves from the Speedify server, your public IP address stays the same and active sessions don’t restart. A company VPN carries on the same way on devices behind a Speedify router, not alongside the Speedify app on the same computer.
  • You choose how each internet connection is used. In the Speedify app, you set each internet connection’s priority (Automatic, Primary, Secondary, Backup or Never), set data limits on metered connections like 4G/5G cellular, and set speed limits per internet connection.

Which Internet Connections to Combine with Starlink

  • Starlink plus wired broadband. For a business with Starlink and a cable, fiber or DSL line, Speedify uses both together, for more combined speed than either one alone. Each one covers for the other when it drops.
  • Starlink plus 4G/5G cellular plus wired broadband. The steadiest of these setups. Any one internet connection can fail without taking your site offline, and all three add to your upload and download speed while they work.
  • Two Starlink dishes plus 4G/5G cellular. For remote sites without wired broadband, Speedify uses two Starlink dishes and 4G/5G cellular at the same time. The two dishes give you the most satellite speed, and cellular covers the satellite switches, which happen on both dishes at the same moment. See how to manage two Starlink dishes at once with Speedify.
  • Starlink with metered 4G/5G cellular as the failover. To keep cellular data costs down, set a data limit on 4G/5G cellular. Cellular adds to your speed until it reaches the limit, and after that Speedify keeps it for failover only, with Starlink as your main internet connection.

How to Set Up Speedify for Starlink WAN Aggregation

Option 1: The Speedify App on Each Computer or Phone

  • Give each device two internet connections. A computer joins Starlink over Wi-Fi or an Ethernet cable, and gets its second internet connection from an Ethernet cable to your other router, a USB cellular modem, a phone plugged in by USB (on a Mac, an iPhone or a supported Android phone), or a USB Wi-Fi adapter (a computer’s built-in Wi-Fi joins one network at a time; on a Mac, USB Wi-Fi adapters work only on Intel models running macOS 11 Big Sur). A phone uses Starlink Wi-Fi plus its own 4G/5G cellular.
  • Install the Speedify app. Speedify runs on Windows, macOS, Linux, iOS and Android.
  • Speedify finds every internet connection on the device and starts using them together on its own. You don’t need to set up each internet connection by hand.
  • Use Speedify Teams to manage every team member and device from one account, and set priorities and data limits for metered internet connections in the Speedify app on each device.

Option 2: Speedify on a Router for the Whole Site

  • Connect all your internet connections (Starlink, wired broadband, 4G/5G cellular modems) to a router that runs Speedify, such as a supported OpenWrt router. The Miri X510 router, powered by Speedify, takes several internet connections and is built for whole-site setups.
  • Speedify uses all the connected internet connections at the router. Every device on the network gets the combined speed and the automatic switching when one drops, without installing anything on each device.
  • Manage priorities, data limits and each internet connection’s status in Speedify’s interface on the router.

A router is the right choice when the whole site has to stay online, including cameras, sensors, networked equipment and anything else that can’t run the Speedify app.

Which Businesses Need Starlink WAN Aggregation

  • Businesses with several internet connections but devices that use only one at a time. If you have Starlink plus another internet provider, Speedify puts both to work right away, and each covers for the other.
  • Remote sites with many people online at once. A remote office or field site where many people are on video calls, uploading files and using cloud apps at the same time needs more speed than one Starlink dish gives. Speedify adds your other internet connections to it.
  • Businesses that promise uptime to their clients. If you owe clients or your own teams dependable internet, you can’t rely on one internet connection. With Speedify, no single internet connection can take you offline.
  • IT teams replacing or adding to multi-connection hardware. Speedify is software: it runs on computers and supported OpenWrt or GL.iNet routers you may already have, or comes preinstalled on Powered by Speedify routers such as the Miri X510, so you are not tied to one vendor’s appliance.
  • Managed service providers (MSPs) with many client sites. Use Speedify the same way at every client site, with every user and device on one Speedify Teams account, whatever mix of internet connections each site has.

Speedify Plans for Businesses Using Starlink with Other Internet Connections

Speedify Teams ($89.99 per user per year) gives network admins one account for the whole organization: the Teams dashboard handles users, seats, billing and usage statistics, and the Speedify Teams API can add users, check active devices and push Speedify settings to the whole team.

For businesses that need servers of their own, static IP addresses and port forwarding, Speedify Dedicated Servers are available as a managed option, and they come with an uptime promise: one free day of service for every hour of downtime. For businesses that must keep data in a specific country or need a specific network design, Speedify Self-Hosted Servers let your team run Speedify traffic through your own private servers.

Not sure which internet connections, devices or router your site needs? Contact Us and the Speedify team will help you plan the setup.

Speedify Business Solutions

Speedify Teams

Get faster uploads and downloads and a more reliable internet connection for all the people and devices in your business.

Speedify for Routers

Run Speedify on your OpenWrt, GL.iNet or Miri router to combine Wi-Fi, 4G/5G cellular, Ethernet, Starlink and satellite internet connections for every device on your network.

Speedify Embedded Solutions and Integrations

Add Speedify to your own app or hardware with the Speedify SDK. Your product then combines internet connections, fails over automatically when one drops, and encrypts the traffic, using the same technology as the Speedify app.