Your VPN tunnel is connected, but data packets aren’t moving. This happens when DNS queries fail, drivers clash, or virtual adapters jam your connection. Our monster geek, Ramos Terance, is providing 10 fast fixes without the need of rebooting everything.
Protocol Switching
Your ISP drops default packets. Switch protocols to force a new port handshake.
Try WireGuard. If it hangs, flip to OpenVPN TCP on port 443 to blend in with normal HTTPS web traffic. OpenVPN UDP runs fast but hits firewall blocks. Use IKEv2 on mobile when jumping between Wi-Fi and cell data.
DNS Server Overrides
The VPN gave you an IP, but your OS still asks your ISP’s DNS to resolve domain names. Total dead end, friends.
- Set IPv4 DNS manually to 1.1.1.1 and 1.0.0.1.
- Flush stale records. Type ipconfig /flushdns in Command Prompt.
- Turn off Smart Multi-Homed Name Resolution.
Flush DNS and Winsock Reset
Corrupted network sockets break translation. Clearing them dumps stale routes.
Run Command Prompt as admin. Execute netsh winsock reset, then run netsh int ip reset. Reboot immediately. Skipping the restart leaves the network stack frozen half-baked.
Virtual Adapter Collisions
Old VPNs leave orphan TAP adapters behind. They fight over bindings.
Open Device Manager. Head to Network Adapters. Disable unused TAP-Windows or WireGuard interfaces left from uninstalled software. Keep only your main VPN’s active adapter.
TAP Adapter Reinstallation
Windows updates break drivers. Oh, how I hate updates. In the name of BestVPNListing’s community – please don’t update your software unless you tried everything else.
Go to app settings and click “Reinstall TAP Driver”. Or uninstall the adapter in Device Manager, scan for hardware changes, and let the app rebuild it.
Kill Switch Misbehavior
The kill switch cuts outbound internet when a drop happens. It gets stuck on even after the tunnel reconnects.
Turn off the kill switch in settings. Check if browsing works. Toggle it back on to reset the filter driver. Also check if a third-party firewall blocked the kill switch process.
IPv6 Traffic Leak & Block
Most VPNs only handle IPv4. If your ISP feeds you IPv6, non-VPN traffic leaks around the tunnel or gets dumped entirely.
Disable IPv6 in adapter properties. Right-click your connection under Network Connections, open Properties, and uncheck IPv6. Save it.
MTU Size Misconfigurations
Set the MTU too high, and your router drops encrypted packets for exceeding physical limits.
- The Default MTU sits at 1500.
- Trim it to 1400 or 1380 in VPN app settings.
- Smaller MTU prevents packet fragmentation.
Antivirus & Firewall Blocks
Security software may treat your VPN’s virtual network adapter or app as untrusted and block its connection.
- Add the VPN app to your antivirus exclusion list.
- Open Windows Defender Firewall and check the list of allowed apps.
- Make sure the VPN executable is allowed on both private and public networks.
- Restart the VPN app after applying the changes.
Router Passthrough & Port Forwarding
Your router’s firewall might drop IPsec or OpenVPN packets before they reach the gateway.
Log into the admin panel (usually 192.168.1.1). Look for VPN Passthrough settings. Turn on IPsec, PPTP, and L2TP passthrough. Save and reboot the router.
Troubleshooting FAQ
Why does my VPN connect but Chrome says "No Internet"?
Chrome depends on the system DNS. If the tunnel connects without binding DNS, Chrome can’t resolve site addresses even if IP traffic moves fine.
Will resetting network settings delete my saved Wi-Fi passwords?
Yes. Full resets erase Wi-Fi profiles, Bluetooth pairs, and manual IP setups. As I like to say in every guide, please be careful when dealing with credentials.
Should I keep IPv6 disabled permanently?
For most home connections, yes. It won’t break normal browsing and stops IPv6 leak exploits.
Why does my internet work on phone VPN but not on PC VPN?
Windows fights with TAP adapters, desktop firewalls, and complex network stacks. Mobile operating systems route VPN connections directly through the OS kernel without virtual adapter junk.
