The Ultimate Guide to Combine Two DSL Lines and Get Faster Internet
Stuck with slow DSL? Run two DSL lines at the same time for faster upload and download speeds and internet that stays online even if one line drops out.
Speedify is an app that combines two or more internet connections at once, such as two separate DSL lines, and encrypts your traffic like a VPN. Speedify runs on Windows, macOS and Linux. On Windows, you can also turn your PC into a router that combines both DSL lines.
Speedify uses every internet connection your device has, at the same time
How do I use WiFi and 4G/5G cellular at the same time with Speedify?
Pick your two internet connections and your device below and we'll take you to the step-by-step setup guide.
Step by Step Guide to Fix Slow DSL Internet by Using Two DSL Lines at the Same Time
If you live in a remote area “in the middle of nowhere,” or have no alternative to DSL where you live, make the best of it: get a second DSL connection and use it together with your existing one. Speedify combines the two lines.
Requirements:
Depending on how you’re connecting your computer to your current DSL line, you will need the following:
- A Speedify subscription, which lets you combine multiple connections into one faster, encrypted connection on Windows, macOS or Linux computers.
- Depending on how you want to connect to your second DSL Internet line: you may need an extra USB adapter for Ethernet or WiFi.
- If you’re currently connecting to DSL via Ethernet cable and your second DSL line comes with a WiFi modem/router as well, then you don’t need any extra hardware. You will use the second DSL connection via your built-in WiFi adapter on your laptop.
- If the second DSL line uses the same type of connection to the computer as the first one (either Ethernet or Wi-Fi), you need one of those USB adapters, because most computers do not have 2 built-in Ethernet or Wi-Fi adapters. For a Mac, choose a USB Ethernet adapter: a USB Wi-Fi adapter only works on a Mac with an Intel processor and macOS 11 Big Sur or older (see step 3).
You can get such USB adapters on Amazon for around $10 a piece. You should look for something similar to one of the adapters pictured below.
7 Steps to Combine Two DSL Lines Simultaneously for Faster Internet
- Contact your DSL provider and ask for a second DSL Internet connection. This could take a week or more, depending how soon you can schedule the installation. Upon installation, make sure they test the connection parameters so that you know you’re getting what you’re paying for.
- Download and install Speedify on your Windows PC, Linux, or Mac computer. You can try Speedify on the free tier (5 GB per month with a free account), then purchase a monthly or yearly subscription to combine and encrypt all of your traffic.
- If necessary (see requirements above), plug in the USB adapter dongle you acquired in your computer and make sure the drivers are installed by Windows or macOS.
- On a Mac, USB Wi-Fi adapters only work with an Intel processor and macOS 11 Big Sur or older, and need the Wi-Fi utility from the adapter maker. On a newer Mac, use a USB Ethernet adapter and an Ethernet cable for the second DSL line instead.
- On a Mac, USB Wi-Fi adapters only work with an Intel processor and macOS 11 Big Sur or older, and need the Wi-Fi utility from the adapter maker. On a newer Mac, use a USB Ethernet adapter and an Ethernet cable for the second DSL line instead.
- Connect to your second DSL Internet connection on your computer for Ethernet or WiFi. Do this either with the built-in adapter or the USB adapter you got.
- If using Ethernet for your second DSL line, you’re going to connect an Ethernet cable between the DSL modem and your network card.
- If you connect over Wi-Fi, find the Wi-Fi network of the new DSL modem your provider installed and connect to it.
Always make sure you select the right Ethernet or Wi-Fi adapter when choosing the network. The screenshot below shows the Windows interface with 2 DSL connections over Wi-Fi.
When successful, you should see each of the 2 adapters connected to one network.
- Start Speedify and sign in with your Speedify account. Speedify will detect your 2 active DSL Internet connections and show them on the screen.
- Choose a server for Speedify to connect to and combine the 2 DSL Internet links. By default, Speedify will connect to the fastest server, but you can choose a specific location as well, if you need to unblock restricted content.
- Enjoy faster Internet with Speedify, as it combines the 2 DSL connections for their total bandwidth and speed. When both connections light up in the Speedify interface, they are connected and online, and Speedify is combining the two.
Speedify Also Encrypts Your DSL Traffic Like a VPN
Speedify is more than a way to combine DSL lines. It also works as a mobile VPN platform built for speed, so it won’t slow your device down, and it encrypts all of your traffic to protect you on an unsecured public Wi-Fi network.
Speedify is also available for iPhone, iPad, Android smartphones and tablets, from the Apple App Store and Google Play Store. A single Individual subscription lets you protect up to 5 devices at once.
Speedify is also an anonymous no log VPN service, so your data is not stored or sold to other companies.
Speedify improves your device’s internet connection and makes it more secure, in one app that anyone can use.
If you have slow DSL internet, get a second DSL line and combine the two with Speedify for faster downloads and uploads and DSL failover. Get started with Speedify today: the free tier includes 5 GB per month with a free account.
Speedify
Get started with Speedify today.
Combine Wi-Fi, 4G/5G cellular, Ethernet, Starlink, and more into one faster, steadier connection. Free to try — no credit card required.
🚀 Speed
Faster uploads and downloads by bonding all your connections at once.
📶 Stability
Automatic failover in under a second when any connection drops.
🔒 Security
AES-256 encryption on every connection, on every network you join.
15M+ downloads worldwide. 75K+ five-star reviews on iOS and Android.