What is a VPN? Simple explanation

VPN stands for Virtual Private Network. It creates an encrypted tunnel between your device and a server, hiding your online activity. Your IP is replaced, giving you privacy, security on public Wi-Fi, and access to geo-blocked content.

Updated 2026 30 March 2026 3 min read

Why is My VPN Not Working?

🔍 Quick answer:

If your VPN is not working, try these fixes first: 1) Switch servers — the server you're using may be overloaded. 2) Change protocol — try OpenVPN TCP (port 443) for better reliability. 3) Update the VPN app — old versions can have bugs. 4) Check firewall/antivirus — temporarily disable to test. 5) Restart device and router — clears temporary issues. 6) Enable obfuscated servers — if you're in a country with VPN blocks. Most connection problems are resolved with these simple steps.

8 common reasons your VPN isn't working

1. Firewall or antivirus blocking VPN

Fix: Temporarily disable firewall/antivirus to test. If VPN connects, add your VPN app as an exception in the security software.

2. Outdated VPN app

Fix: Update your VPN app to the latest version from the official website or app store. Check for updates weekly.

3. Wrong protocol selected

Fix: Switch to OpenVPN TCP on port 443 — this disguises VPN traffic as regular HTTPS traffic and is the most reliable on restrictive networks.

4. Overloaded VPN server

Fix: Switch to a different server, preferably one closer to your location. Use your VPN's "fastest server" option.

5. Unstable internet connection

Fix: Check if you can browse without VPN. Restart your router and modem. On mobile, toggle airplane mode on/off.

6. ISP blocking VPN traffic

Fix: Switch to OpenVPN TCP on port 443. Use obfuscated servers or "stealth mode" if your VPN offers it (NordVPN, ExpressVPN, ProtonVPN have these features).

7. Battery saver mode (mobile)

Fix: Disable battery optimization for your VPN app. On Android: Settings → Apps → VPN → Battery → Unrestricted. On iPhone: Settings → General → Background App Refresh → enable for VPN app.

8. VPN subscription expired

Fix: Check your subscription status in the VPN app or on the provider's website. Renew if needed.

Quick fixes to try first

Restart everything

Restart your device, router, and VPN app. This resolves most temporary issues.

Switch servers

Try a different server, preferably one closer to your location.

Change protocol

Switch to OpenVPN TCP on port 443 for best compatibility.

Update the app

Ensure you're running the latest version of your VPN app.

💡 Pro tip: If you're in a country with heavy internet censorship (China, Iran, Russia), standard VPN protocols may be blocked. Use a VPN with "obfuscated servers" or "stealth mode" that disguise VPN traffic as regular HTTPS traffic. ExpressVPN (Lightway), NordVPN (obfuscated servers), and ProtonVPN (Stealth protocol) offer these features. If nothing works, contact your VPN's 24/7 live chat support — they can help diagnose specific problems.

Was this helpful?

How to Create a VPN for Free?

Is Express VPN Free?