A VPN can show Connected while every website stops loading. That usually means the home connection is still working, but the VPN tunnel, DNS path, or a kill switch is blocking traffic. Test the connection in a safe order: confirm the internet without the VPN, check whether one app or every app is affected, then change one VPN setting at a time. Do not reset the router first.
First, identify what stopped working
| What you see | Most useful first check |
|---|---|
| Every device loses internet when the VPN runs on the router | Disconnect the router VPN profile and test a normal connection |
| Only one computer loses access | Test another browser and inspect its proxy or security software |
| Only some websites fail | Try a different VPN server and check DNS or split tunneling |
| The VPN says connected but nothing loads | Check kill switch, protocol, and the VPN app’s connection log |
1. Prove the home internet works without the VPN
Disconnect the VPN, then open two unrelated sites. If they still do not load, the VPN is not the original problem. Check the modem, router, and another device first. Our WiFi connected but no internet troubleshooting guide covers that branch.
If normal browsing returns as soon as you disconnect the VPN, reconnect it and continue. This simple comparison prevents you from changing router settings when the failure is inside the VPN profile.
2. Check whether a kill switch is doing its job
Many VPN apps include a kill switch. It blocks regular internet traffic whenever the encrypted tunnel is unavailable, which helps prevent an accidental direct connection. A server change, sleep event, or brief WiFi change can trigger it. Open the VPN app and temporarily turn the kill switch off for a short test. If browsing returns, turn it back on and repair the VPN connection instead of leaving the protection disabled.
If the option is called Network Lock, Always-on VPN, or Block connections without VPN, the name may differ by app. Read the provider’s documentation before changing it on a work computer or a device managed by an employer.
3. Try another VPN server
A single server can be busy, offline, or unable to reach a particular website. Disconnect, choose a nearby server in the same country, and connect again. If one server works and another does not, record the server name and time. That detail is more useful to VPN support than a general statement that the internet is broken.
4. Change the protocol only once
VPN protocols package and route traffic differently. A network that blocks or disrupts one protocol may work with another. If your app offers a protocol selector, try its automatic setting first, then one alternative recommended by the provider. Do not switch repeatedly while other troubleshooting steps are running. After each change, open the same test sites and note whether DNS, video, and file downloads work.
5. Check DNS and split tunneling
DNS translates a website name into an address. A VPN can supply its own DNS servers, while split tunneling sends only selected apps through the tunnel. A bad DNS response can make browsers fail even though the tunnel says connected. Test a different browser, turn off custom DNS inside the VPN for one comparison, and review whether the browser is excluded or included in split tunneling by mistake.
On Windows, also check whether a manual proxy is enabled. Microsoft explains that proxy traffic takes a different path from a direct connection, so an old proxy can make a VPN look broken. Disable a proxy only if you know it was not required by your workplace or school.
6. Check the device clock and WiFi path
Encrypted connections use certificates and time-sensitive handshakes. An incorrect device date or time can prevent a tunnel from completing properly. Set the device to update time automatically, then reconnect. If the device recently moved between a home network and public WiFi, forget and rejoin the network only after confirming that other devices still work.
7. Test another network before reinstalling
Connect the same device to a phone hotspot or another trusted network and test the VPN. If it works there, the home router, ISP, or network filtering may be interfering with the tunnel. If it fails everywhere, focus on the VPN account, app, protocol, or device configuration. This comparison gives you a clear direction without guessing.
8. Update or reinstall carefully
Install the current VPN app only from its official source. If an update does not help, export any settings you need, sign out, and reinstall according to the provider’s instructions. Reinstalling can remove virtual adapters and saved profiles, so do not do it before recording the server, protocol, and split-tunneling choices that work on another device.
When to contact support
Contact the VPN provider when the same account fails on several networks, when only one protocol fails after a server change, or when the app log shows repeated authentication or DNS errors. Contact your ISP when normal internet works only after changing router settings or when every VPN device fails at home but works elsewhere. Apple also recommends checking third-party VPN and security software when an iPhone or iPad has connectivity problems.
