My VPN connects but nothing loads. What does that mean?

This usually means the VPN is connected but some requests are still leaking outside it, or the network is blocking traffic after the connection is made. Enable DNS leak protection in your VPN settings, then use our IP and DNS checker to see what's visible. Our DNS leak guide walks through the full fix.

Is it safe to use a VPN on airport wi-fi?

Yes, and it's a good idea. Airport networks are busy, shared environments. A VPN encrypts your traffic so that even if someone is intercepting data on the network, they can't read what you're sending.

Does a VPN protect me from malware on public wi-fi?

A VPN protects against traffic interception on the local network, but not against malware. If you visit a malicious website or download a compromised file, the VPN won't protect you from that. It's one security layer, not a complete solution.

Why does my VPN work at home but not at a coffee shop?

At home, your router connects you directly to the internet and VPN traffic passes through unfiltered. Coffee shop networks typically have a sign-in page that needs completing before full internet access is granted, and some filter VPN protocols on top of that. Completing the sign-in page first, then switching to OpenVPN TCP on port 443 if still blocked, fixes it in most cases.

Does public wi-fi always block VPNs?

No. Many public networks don't block VPNs at all once you've completed the sign-in page. Active VPN filtering is more common in certain places: airports and hotels are more likely to filter traffic than a local cafe. If your VPN connects without any changes, you're on an unrestricted network.

Can I use a free VPN on public wi-fi?

You can, but free VPNs often struggle on restricted public networks because they offer fewer protocol options and are generally less reliable as a security tool. For basic protection in a pinch they're better than nothing, but a paid VPN with protocol flexibility is a more dependable choice if you use public wi-fi regularly.

Will a VPN slow down my connection on public wi-fi?

A little, usually. Encrypting your traffic adds some overhead, though on a fast protocol like WireGuard it's often barely noticeable. Public wi-fi tends to be the bigger bottleneck anyway: shared bandwidth across dozens of other people on the same network will typically slow you down more than the VPN itself does. If speed feels unusually bad with the VPN on, try a server that's physically closer to you before assuming the VPN is at fault.

My VPN works fine on my laptop but not my phone on the same network. Why?

This usually comes down to protocol or a background handover issue rather than the network treating the two devices differently. Phones can lose the VPN tunnel briefly when switching between wi-fi and mobile data, or when the wi-fi signal dips, in a way laptops generally don't. Try IKEv2 on the phone if you're not already using it, and make sure you're on your VPN provider's full app rather than a browser extension, since extensions only cover browser traffic.

Network

VPN Not Working on Public wi-fi? How to Fix It

Most VPN failures on public wi-fi come down to a missed sign-in page or a blocked protocol

Thomas RichardEditor

Updated 23 July 2026 · 10 min readAugust 2026: added a phone vs laptop section, a VPN-verification callout, and two new FAQs on VPN speed and device-specific behaviour.

Fix your VPN on public wi-fi in minutes

Turn your VPN off, complete the network's wi-fi sign-in page in your browser, then turn it back on: your VPN can't connect until that step is done
Switch your VPN protocol to OpenVPN TCP on port 443 (a port is just a numbered channel your device uses for a specific type of traffic): most networks leave this one open because blocking it breaks normal websites
Run our IP and DNS checker to confirm your VPN is working: if your real provider shows up, your connection is leaking
Use your phone's mobile hotspot as a fallback: this bypasses the public network entirely

If your VPN still isn't working, you need a better alternative that actually hides your location.

See our recommended VPNs

If your VPN stops working the moment you join a public wi-fi network, the fix is usually quick. Public networks in cafes, airports, and train stations handle VPN traffic in different ways, but two causes cover most problems: the network's sign-in page hasn't been completed yet, or the network is filtering certain types of connection.

Why public wi-fi is riskier than it looks

Many public wi-fi networks are unencrypted or shared in ways that make your traffic visible to others on the same network. On an unencrypted network, anyone else connected to the same wi-fi can potentially intercept the data passing between your device and the internet. That includes login details, emails, and anything else sent without its own encryption layer. A VPN wraps everything your device sends in encryption before it leaves, so even if someone is watching the network, they can't read your traffic.

This matters more on public networks than at home. Your home router is a private, controlled environment. A coffee shop or airport network is shared with strangers. Getting your VPN working is basic protection for anything sensitive you do away from home.

This fixes most VPN problems on public networks. When you join a public wi-fi network, a sign-in or terms page usually appears in your browser before you get full internet access. Until you complete that step, only basic web traffic is allowed through, and VPN connections fail because they need a full internet connection to form.

Here's the right order:

Turn your VPN off if it's running.
Connect to the public wi-fi.
Open your browser. The sign-in page should appear automatically. If it doesn't, try navigating to a plain HTTP website rather than HTTPS. Sign-in pages redirect HTTP traffic to the login page, but can't always intercept HTTPS addresses.
Accept the terms or complete the login.
Once a web page loads normally, turn your VPN back on.

Some larger venues run separate networks for different areas. If your VPN worked at one end of an airport but fails at another terminal, connect to that network, complete its sign-in page, and then reconnect your VPN.

Completing the sign-in page before turning on your VPN fixes most public wi-fi VPN problems. If yours still won't connect after that, the network is actively filtering traffic, and that's what the next fix is for.

Fix 2: Switch your VPN protocol

If you've completed the sign-in page and the VPN still won't connect, the network is filtering VPN traffic by connection type. Switching to a protocol that looks like ordinary web browsing gets through on most restricted networks.

Open your VPN app and look for a Protocol or Connection setting. Try these in order:

OpenVPN TCP on port 443. TCP is one of two ways your VPN can send data (the other, UDP, is faster but less reliable); TCP double-checks everything arrives correctly, which makes it slower but better at getting through firewalls. Port 443 is the standard port for HTTPS web traffic. Blocking it would break most of the internet, so most networks leave it open. On restricted public networks, this is usually the best option to try first.
WireGuard. Some networks block OpenVPN but not WireGuard. Worth trying if OpenVPN doesn't work.
IKEv2. Worth trying, particularly on mobile devices. Some networks block it, so treat it as a third option rather than a sure fix.

How to switch in the main apps:

NordVPN: Settings > Connection > VPN Protocol, then select OpenVPN (TCP).
ExpressVPN: Preferences > Protocol, then select OpenVPN TCP or Lightway TCP.

Our full protocol-switching guide has step-by-step instructions for every major VPN app.

Fix 3: Use your phone as a mobile hotspot

If nothing else works, skip the public network altogether. Turn on your phone's mobile hotspot and connect your laptop or tablet to that instead. Your VPN will connect normally over mobile data, which doesn't have the same filtering as public wi-fi networks.

The main trade-off is data usage. For browsing and emails this works fine, but streaming will eat through your allowance quickly. Check your mobile plan includes hotspot use before relying on it.

Fix 4: Set your VPN to auto-connect on unfamiliar networks

If you use public wi-fi regularly, most VPN apps have a setting that switches the VPN on automatically whenever you join an unfamiliar network. This means you can't accidentally forget to turn it on. Look for Auto-connect on untrusted wi-fi or Always-on VPN in your VPN app's settings.

Pair this with your VPN's Kill Switch. The kill switch pauses your internet if the VPN drops rather than letting unprotected traffic through. Together, the two settings keep your traffic protected on public networks automatically.

Phone versus laptop: does it behave differently?

The sign-in page and protocol issues above affect any device the same way, but there are a couple of differences worth knowing about depending on what you're connecting with.

On a phone, the biggest practical issue is your device switching between wi-fi and mobile data without you noticing, particularly if the public wi-fi signal is weak. Each switch can drop the VPN tunnel briefly. IKEv2 tends to handle this kind of handover better than OpenVPN, so it's worth trying if your VPN keeps reconnecting on mobile. It's also worth double-checking you're using your VPN provider's actual app rather than a browser-only extension: extensions don't cover anything outside the browser, including other apps that might be sending data over the same public network.

On a laptop, the more common issue is the operating system trying to auto-connect to a "known" public network name (a lot of venues reuse generic names like "Guest Wifi" or "Free_Airport_Wifi" across different physical locations) before your VPN has had a chance to reconnect. If you travel a lot, it's worth turning off automatic wi-fi joining for open networks in your device's network settings and connecting manually instead, so you control exactly when the VPN comes back on.

Confirm your VPN is actually protecting you

Once you think you've got it working, it's worth actually checking rather than assuming. A VPN app showing "connected" doesn't always mean everything is routing through it correctly, especially on a network that's actively filtering traffic. Our guide to checking your VPN is working walks through a set of quick tests: confirming your IP address has actually changed, checking for a DNS leak, and testing whether your kill switch does anything if the connection drops. All of it takes under two minutes and is worth doing the first time you connect on any new public network.

Which VPN works best on public wi-fi

On public networks, a VPN that can switch connection methods when one isn't working is far more useful than one locked to a single option.

ExpressVPN is our top pick for public wi-fi. Its Lightway protocol has a TCP mode that gets through most restricted networks, and its automatic protocol setting often picks the right option without you needing to change anything.

NordVPN is a strong alternative. It supports OpenVPN TCP, WireGuard, and IKEv2, with clear in-app settings for switching between them and a large server pool for when a specific server is unreachable.

Free VPNs tend to struggle on restricted public networks. They usually offer fewer protocol options, which makes them easier to filter. If you regularly use public wi-fi, a paid VPN with flexible protocol support is worth it.

If your VPN won't connect at all

If your VPN isn't connecting at all on a public network, try switching protocol to WireGuard or OpenVPN TCP on port 443 first. On very restrictive networks, these are often the only options that get through.

If the VPN still won't connect, test it on mobile data. If it works there, the public network is the issue. If it doesn't work on mobile data either, the problem is likely with the VPN app itself. Contact your VPN provider's support and they'll be able to point you to a working server or setting, or run through our free VPN troubleshooter for a guided diagnosis.

Frequently asked questions

: This usually means the VPN is connected but some requests are still leaking outside it, or the network is blocking traffic after the connection is made. Enable DNS leak protection in your VPN settings, then use our IP and DNS checker to see what's visible. Our DNS leak guide walks through the full fix.
: Yes, and it's a good idea. Airport networks are busy, shared environments. A VPN encrypts your traffic so that even if someone is intercepting data on the network, they can't read what you're sending.
: A VPN protects against traffic interception on the local network, but not against malware. If you visit a malicious website or download a compromised file, the VPN won't protect you from that. It's one security layer, not a complete solution.
: At home, your router connects you directly to the internet and VPN traffic passes through unfiltered. Coffee shop networks typically have a sign-in page that needs completing before full internet access is granted, and some filter VPN protocols on top of that. Completing the sign-in page first, then switching to OpenVPN TCP on port 443 if still blocked, fixes it in most cases.
: No. Many public networks don't block VPNs at all once you've completed the sign-in page. Active VPN filtering is more common in certain places: airports and hotels are more likely to filter traffic than a local cafe. If your VPN connects without any changes, you're on an unrestricted network.
: You can, but free VPNs often struggle on restricted public networks because they offer fewer protocol options and are generally less reliable as a security tool. For basic protection in a pinch they're better than nothing, but a paid VPN with protocol flexibility is a more dependable choice if you use public wi-fi regularly.
: A little, usually. Encrypting your traffic adds some overhead, though on a fast protocol like WireGuard it's often barely noticeable. Public wi-fi tends to be the bigger bottleneck anyway: shared bandwidth across dozens of other people on the same network will typically slow you down more than the VPN itself does. If speed feels unusually bad with the VPN on, try a server that's physically closer to you before assuming the VPN is at fault.
: This usually comes down to protocol or a background handover issue rather than the network treating the two devices differently. Phones can lose the VPN tunnel briefly when switching between wi-fi and mobile data, or when the wi-fi signal dips, in a way laptops generally don't. Try IKEv2 on the phone if you're not already using it, and make sure you're on your VPN provider's full app rather than a browser extension, since extensions only cover browser traffic.

Our recommendations

The Best VPNs for Public wi-fi

If the fixes above didn’t work, the problem is usually the VPN itself. Not all providers are equal at unblocking streaming services. These are the ones we recommend based on our own testing.

The “Try” buttons for NordVPN, ExpressVPN and PureVPN are affiliate links: we earn a commission if you subscribe, at no extra cost to you. Full disclosure.

NordVPNStarting from £2.29/mo

The most consistent VPN we've tested across BBC iPlayer, Netflix, Disney+, and the harder UK services. Reliable, fast, and works on up to ten devices at once.

Try NordVPN Read our review

ExpressVPNStarting from £1.99/mo

The fastest VPN in our tests by a consistent margin, and competitively priced. A strong choice if speed, picture quality, or smart TV streaming matters to you.

Try ExpressVPN Read our review

PureVPNStarting from $2.15/mo

The most affordable of our three picks. Still unblocks all the major streaming services, and the price makes it a sensible starting point if you're new to VPNs.

Try PureVPN Read our review

New to VPNs? Find out if you actually need one.

VPN use is legal in the UK and most countries. Accessing streaming services from outside their licensed territory may fall outside their terms of service; check the terms of any service before use.