How to Combine ADSL and 4G/5G with Speedify for Faster, Steadier Internet

ADSL and 4G/5G Bonding – No Need for Dedicated Router

Want faster, steadier internet without buying a dedicated router? Run your ADSL line and 4G/5G cellular data at the same time. Speedify is an app that combines two or more internet connections at once – such as ADSL and 4G/5G cellular – so you get faster uploads and downloads and stay online if one connection drops out. It works on Windows and Mac.

Speedify · Automatic Failover
Primary Backup WI-FI Connected 4G / 5G Standing by ⚠ DROPPED Lost connection Speedify switches › CELLULAR Taking over YOU STAY ONLINE No dropped calls. No reconnecting.

With Speedify, your internet stays on when one connection fails.

When one of your connections drops, Speedify automatically routes your traffic to your remaining connections — so calls don't cut out and downloads don't stall.

Speedify · channel bonding & automatic failover Download Speedify ›

How do I use WiFi and 4G/5G cellular at the same time with Speedify?

How Speedify bonds Wi-Fi and cellular connections

Pick your two internet connections and your device below and we'll take you to the step-by-step setup guide.

I want to combine

Use the selectors below to find the setup guide for your exact combination of connections.

Or view articles for

Get started with Speedify today

Free to try on every device. No credit card required.

15M+ downloads worldwide · 75K+ five-star reviews · 500TB+ bonded per week

Combining ADSL and 4G LTE / 5G for Speed, Stability and Security.

Living in remote areas “in the middle of nowhere”, as some might say? Or, sadly enough, don’t you have other alternatives to your ADSL Internet connection where you’re located? You can still make the best of it and use your phone’s Internet link together with your existing ADSL line. It’s very easy to combine them with our Speedify software app.

Requirements

  • A subscription of Speedify bonding VPN. Speedify can be used on both Windows and macOS computers, as well as Android, iOS and Linux.
  • A 4G LTE / 5G connection – this may be your mobile phone or a USB cellular dongle.

6 Steps to Combine ADSL and 4G LTE / 5G into a Fast, Stable and Secure Internet Connection

Here’s what you have to do:

  1. Make sure you’re connected to your ADSL Internet, either via wired Ethernet or Wi-Fi. For best results, we recommend using the wired Ethernet connection, as Wi-Fi signal is variable.
  2. Setup your 4G LTE / 5G cellular connection: either tether your smartphone via USB or connect a USB cellular adapter. See instructions below on tethering:
  3. Start Speedify and log in using your subscription credentials. Speedify will detect your active ADSL and 4G LTE / 5G Internet connections and show them on the screen.
  4. Choose a server for Speedify to connect to and combine the DSL Internet link with your tethered phone connection. 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.
  5. Set the 4G LTE / 5G cellular connection on a Secondary priority and specify a daily or monthly data cap. You don’t want to exceed your quota and pay more, so Speedify will just cut the use of the tethered phone data connection once you’re done for the day / month.
    However, if you have an unlimited data plan, feel free to set the 4G LTE / 5G cellular connection priority as “Primary”.
  6. Enjoy faster Internet with Speedify, as it combines your ADSL Internet link with your 4G LTE / 5G cellular connection for their aggregated bandwidth and speed. When both symbols light up in the Speedify interface, that means they’re connected and online, and Speedify is bonding the two.

With Speedify You Don’t Sacrifice Speed for Security. You Get Both.

Speedify is more than just a way to use and manage multiple ADSL and 4G LTE / 5G cellular Internet connections to get faster Internet on your computer. It is also a bonding VPN designed for speed, so it won’t slow your device down. Speedify encrypts all of your data and protects you from the dangers of using an unsecured public WiFi network.

Speedify is also available for mobile devices such as iPhone, iPad, Android smartphones and tablets. You can even use Speedify on Linux devices.

Plus, Speedify is an anonymous no log VPN service, so that you can stay with peace of mind that your data is safe and won’t be sold to other companies for money.

Speedify is not only the easiest way to improve your device’s Internet connectivity. It is also the best way to make your device more secure. Speedify has packed all of this industry-leading technology into one simple app that anyone can use.

What are you waiting for? If you’re in need for faster ADSL Internet, then it’s time to move forward and use it together with a 4G LTE / 5G cellular connection your computer. Get started with Speedify today!

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.