How to Use a 4G/5G Dongle and Wi-Fi at Once on Windows PC with Speedify

Take Advantage of Wi-Fi and a 4G/5G Cellular Dongle for Faster, More Reliable Internet

Have you ever experienced a bad Wi-Fi hotspot? Let’s go with a strong “yes” on this one and suggest a solution for those moments when you’re working on your PC and the Wi-Fi Internet is very slow or even disconnects: a cellular USB dongle.

But we’re not suggesting using that 4G/5G cellular dongle as a backup connection – you would join it with the Wi-Fi Internet simultaneously. All you need is a channel bonding (or link aggregation) software app like Speedify.

Speedify is the only app that joins together your Starlink, Wi-Fi, 4G / 5G cellular, wired, and even your friend’s phone signals – and turns them into one ultra-fast and super secure link that keeps you all connected for the best possible live streaming, video calling, or just posting to your favorite app.

Speedify can join any number or combination of Internet connections and will intelligently distribute your online traffic among them for optimal performance. Plus, if you get disconnected from one of your connections in the middle of an important video call or file transfer, Speedify will seamlessly failover to your other working Internet connection(s) without skipping a beat.

NOTE: For best results, use Internet connections from different sources. In general, joining the same upstream network multiple times (such as the same router via Ethernet and Wi-Fi) will not improve performance.

Quick answer

Should you have a backup 4G, 5G, Starlink, or cable internet connection?

Yes — every internet connection goes down, including Starlink, which drops for ~34 minutes a day on average. A backup connection from a different provider means one outage never takes you fully offline. The most common options are a 4G/5G cellular hotspot, a cable or DSL line, or a second satellite dish.

Speedify bonds any two connections into one — automatic failover, more speed, no dropped calls.

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Speedify

Speedify gives you faster, steadier internet by combining Wi-Fi, cellular, and Starlink

Speedify bonds Wi-Fi, 4G/5G cellular, Ethernet, and Starlink into one connection at the same time, giving you more speed, automatic failover when one drops, and AES-256 encryption on every link.

Download Speedify ›

More speed

Upload and download speeds combine across every active connection on your device.

🔄

Automatic failover

If a connection drops, Speedify moves your traffic to another in milliseconds. Calls stay connected.

🔒

Always encrypted

Every link runs through an encrypted tunnel, including public Wi-Fi, cellular, and Starlink.

Speedify Feature · Pair & Share

Speedify Pair & Share: share cellular between your devices, both ways

Most hotspots give. Speedify's Pair & Share gives and takes. Two devices running Speedify pair up and each uses the other's cellular connection simultaneously, so you both get faster uploads, faster downloads, and a steadier connection. No extra hardware, no new data plans, no setup beyond a tap.

Learn how Speedify's Pair & Share works ›

More speed

Every device you pair with adds its cellular to yours, and yours to theirs.

📱

Stays connected

If a paired device drops out, Speedify keeps you online on the remaining links.

🔒

Always private

Every shared connection runs through AES-256 encryption. Your traffic is yours.

🎉

No new gear

Runs on devices already running Speedify, over your local network. Pair once, reconnects automatically.

How do I use Wi-Fi 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.

I want to combine

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

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3 Steps to Join a USB Cellular Adapter and Wi-Fi at Once on a PC

Step 1: Connect to Wi-Fi

Verify that your Wi-Fi is enabled on your PC and connected to a network.

Click on the Wi-Fi symbol in the lower right corner of the taskbar (systray). If you’re not already connected to a Wi-Fi hotspot, turn on Wi-Fi by clicking on the tile in the lower left side of the pop-up menu then select your desired network. Keep in mind, private networks may require you to enter a password before connecting.

Step 2: Connect your USB Cellular Adapter to your PC

Connect your Cellular Adapter to a USB port on your PC. Some Cellular adapters require the use of proprietary dialer software to connect to the Internet. Be sure to follow the manufacturer's installation and operating instructions closely.

In order to verify that your cellular connection is active, click on the computer / Wi-Fi icon in the lower right area of the taskbar (systray) and check to see if a “Cellular” tile shows up.

Don’t have a USB Cellular Adapter? You can also use a tethered iPhone/iPad or Android device!

Step 3: Download and Install Speedify

Last but certainly not least, download and install Speedify. Once running, Speedify will automatically detect any available Internet connections and join them together for increased speed, security, and stability.

Need to keep several devices connected in areas with limited or spotty network coverage, like event venues, remote locations or when traveling? Get consistent and uninterrupted online activity for all your devices using Speedify's Pair & Share functionality, which allows you to share cellular data between multiple devices wirelessly.

By pairing devices, you can effectively distribute your cellular connection across them, improving overall performance, especially when other network options like Wi-Fi may be slow or unstable.

You can manage settings, view statistics, and even apply limits to individual connections by either clicking/tapping on them from the Dashboard or by navigating to the desired connection through the main Settings menu.

Speedify will work quietly in the background to optimize performance including prioritizing streaming web traffic to avoid stuttering, buffering and disconnects.

Whether at home, work, or on-the-go, Speedify is the only VPN that makes your online experiences faster, more reliable, and more secure.

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Get started with Speedify today!

With Speedify you can combine Wi-Fi, 4G / 5G cellular, Ethernet, Starlink and other satellites into one bonded super-connection to improve livestreaming, video calling, gaming, web browsing, and everything else you do online.

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Speed

Get faster uploads and downloads for everything you do online.

Stability

Avoid buffering and disconnects while streaming, gaming, and browsing.

Security

Keep your personal data safe from hackers, snoops and cyber criminals

Speedify engineers love talking tech on YouTube, Tiktok, and Instagram!

Alex Gizis and the Speedify engineers discuss and explain technology including Starlink satellites, Wi-Fi 7 routers, Apple networking features, fiber optics, broadband internet, 5G mobile networks, AI, networking protocols, and much more. Follow Speedify on YouTube, TikTok, Instagram, and LinkedIn!

Alex and the Speedify team are always exploring the latest in networking and security technology—like 5G, 6G, WiFi 7, laser and satellite internet—and sharing it in new discussion content across YouTube, TikTok, Instagram, and LinkedIn every week.

Got a tech question? Let's go deeper! Pop into Speedify Office Hours live every Wednesday at 10 AM Eastern. Speedify CEO Alex Gizis and our network engineers are standing by to break down your questions about networks, tech updates, and Speedify features.

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