帮助中心连接问题VPN 无法连接——完整故障排查指南
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VPN 无法连接——完整故障排查指南

6 分钟 阅读·更新于 June 8, 2026

逐步排查并解决 VPN 连接失败的问题。

Work through these steps in order — most issues are resolved within the first three steps.

Step 1: Check your internet connection

The VPN requires a working internet connection. Open a browser without the VPN and visit any website. If that fails, fix your internet first.

Step 2: Try a different server

The server may be temporarily overloaded. Open the server list and try a different server in the same country.

Step 3: Switch VPN protocol

  1. 1Go to Settings → Protocol
  2. 2Start with Auto, then reconnect
  3. 3If Auto fails on a normal network, try UDP or UDP Plus
  4. 4On corporate, school, hotel, or restricted networks, try Stealth, TCP, HTTP, HTTP Max, or TLS

Step 4: Check firewall and antivirus

Your firewall or antivirus may be blocking the VPN client. Temporarily disable your firewall and try connecting. If it works, add HorizonVPN as an exception.

Step 5: Restart the app and device

  1. 1Fully close HorizonVPN (right-click tray icon → Quit)
  2. 2Wait 30 seconds, reopen, and try connecting
  3. 3If that fails, restart your device

Step 6: Reinstall HorizonVPN

A clean reinstall resolves corrupted files or driver issues. Uninstall, restart your device, then download and install the latest version.

If you're behind a DPI firewall — common in China, Russia, UAE, and corporate networks — enable Obfuscation mode in Settings → Advanced → Obfuscation before connecting.

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