Improve Starlink Bandwidth and Lower Latency on Ubuntu by Combining with a 4G/5G Cellular Dongle
Ubuntu Linux can use Starlink and a 4G/5G USB cellular dongle at the same time, so the cellular connection covers for Starlink when it slows down or drops.
Speedify is an app that combines two or more internet connections at once, such as Starlink and a 4G/5G cellular connection, so you get faster uploads and downloads and stay online if one connection drops. Without the dongle, Speedify has only Starlink: it then works as an encrypted VPN and cannot stop Starlink from dropping.
This guide shows how to combine Starlink with a 4G/5G USB cellular dongle on Ubuntu Linux using Speedify.
Starlink has no USB dongle of its own: a computer connects to Starlink over the Starlink router’s Wi-Fi or with an Ethernet cable, and older Starlink routers need the Starlink Ethernet Adapter for the cable. The dongle in this guide is a 4G/5G USB cellular modem, a second internet connection that Speedify uses next to Starlink.
Note: Combine internet connections from different sources. Connecting to the same router over both Wi-Fi and Ethernet does not add speed, because both share one internet connection.
3 Steps to Combine Starlink and a USB Cellular Adapter on Ubuntu Linux
Step 1: Connect to Your Starlink Wi-Fi Hotspot
First, set up your Starlink with the instructions that came in the box. This includes your Starlink Wi-Fi network name and password.
On your Ubuntu computer, open the system menu at the right side of the top bar and click the arrow next to Wi-Fi. Choose your Starlink Wi-Fi network and enter its password to connect. On Ubuntu 22.04 and earlier, choose Wi-Fi > Select Network instead.
Step 2: Connect Your 4G/5G USB Cellular Dongle to Ubuntu
Connect your USB cellular adapter to a USB port on your Ubuntu computer. It usually shows up in the system menu as a wired connection.
Some cellular adapters need the manufacturer's dialer software to connect to the internet, so follow the manufacturer's installation and setup instructions.
Step 3: Download and Install Speedify
Download and install Speedify. Speedify is an app that combines your Starlink with the other internet connections on your device, so your internet is faster, more reliable, and more secure.
Once running, Speedify finds your internet connections on its own and splits your traffic across them. If Starlink drops, Speedify moves your traffic to the internet connections that still work. Video calls and live streams get priority over background downloads and updates.
To see how each internet connection is doing, or to set a data limit on one, click or tap it in Speedify.
Speedify's cellular sharing adds more 4G/5G cellular: phones and computers running Speedify on the same local network share their 4G/5G cellular with each other.
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