Tips — OxeraVPN Blog

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28 articles in the Tips category.

• VPN Not Connecting in China? — 12-Step Troubleshooting Checklist
  From DNS poisoning to ISP-specific blocks, 12 things to check when your VPN won't connect from inside China in 2026.
• How to Properly Test VPN Speed from China — 2026 Methodology
  Most VPN speed tests are wrong. Here's the right way to measure VPN throughput, latency, and jitter from inside mainland China.
• Why Your VPN Is Slow in China — 9 Real Causes and Fixes
  Slow VPN in China is rarely the VPN's fault. Here are the 9 most common causes — from ISP throttling to wrong protocol — and the fixes.
• Switching VPN Providers from Inside China — Survival Checklist
  Cancelling your old VPN before the new one works can leave you stranded behind the GFW. Here's the safe migration checklist.
• How to Set Up a VPN Before Traveling to China — Essential Checklist
  App stores in China don't carry VPN apps. Download and configure your VPN BEFORE entering China with this pre-trip checklist.
• VPN Battery Drain on Phones — How to Fix It (2026)
  Always-on VPN can drain phones 20% faster. Here are the protocol and config tweaks that minimize VPN battery drain on iOS and Android.
• VPN Data Usage on Mobile in China — How Much Extra?
  VPN encryption adds 5-15% data overhead. Here's exactly how much extra data your VPN uses on Chinese mobile plans and how to reduce it.
• Why Some Sites Still Don't Work With Your VPN
  Even with a working VPN, some sites refuse to load. Here's why — IP blocklists, geo-strict CDNs, captchas — and the fixes.
• Using a VPN With Online Banking — What You Need to Know in 2026
  Banks often flag VPN logins. Here's how to use a VPN with online banking safely without triggering fraud locks in 2026.
• Using a VPN on School & Work Networks — 2026 Survival Guide
  School and corporate networks block most VPNs. Here's how students and remote workers stay safely connected without breaking IT rules.
• MTU Tuning for China VPNs — How to Recover 20% of Your Speed
  Wrong MTU is the silent throughput killer for VPNs in China. Here's how to find the right value on Windows, macOS, Linux and your router.
• Fix: VPN Keeps Disconnecting in China — 2026 Troubleshooting
  Random disconnects on China networks usually trace to MTU, keepalive or DPI. Here's the 2026 systematic diagnosis and fix order.
• Beating WiFi Captive Portals with a VPN in China — 2026
  Captive portals (hotels, airports, cafés) block VPN connections before login. Here's the 2026 workflow for getting authenticated then secured.
• Fixing 'UDP Blocked' Errors on China Networks — 2026
  Many Chinese ISPs throttle or block UDP, breaking WireGuard and QUIC. Here's the 2026 fallback playbook including TCP-mode and obfuscation.
• VPN Over Cloudflare WARP from China — 2026 Setup
  Layering a real VPN over Cloudflare WARP can survive aggressive DPI. Here's the 2026 setup and when it's worth the latency.
• VPN Over Tor from China — 2026 Configuration
  Running a VPN over Tor (or Tor over VPN) has real use cases for China users. Here's the 2026 setup, threat model and performance reality.
• Double VPN Setup for China Users — 2026
  Double VPN routes through two servers for extra anonymity at the cost of speed. Here's the 2026 configuration and when it's actually worth it.
• Port Forwarding Through a VPN from China — 2026 Guide
  Port forwarding opens services to the internet through your VPN. Here's the 2026 setup for self-hosters in China including security caveats.
• Split Tunneling Guide for China VPN Users — 2026
  Split tunneling lets domestic apps go direct while foreign traffic uses the VPN. Here's the 2026 setup for Windows, macOS, iOS and Android.
• VPN Kill Switch Best Practices for China — 2026
  A kill switch protects you when the VPN drops, but in China it can also strand you. Here's the 2026 best-practice configuration.
• Fixing IPv6 Leaks in China — 2026 Guide
  IPv6 leaks expose your traffic outside the VPN tunnel. Here's the 2026 diagnosis and disable steps across all major operating systems.
• Fixing DNS Leaks in China — 2026 Step-by-Step
  DNS leaks bypass your VPN and let the GFW see what you're browsing. Here's the 2026 diagnosis and fix for Windows, macOS, iOS and Android.
• Why Your VPN Is Slow on Hotel WiFi in China — 2026 Fixes
  Hotel WiFi in China combines bandwidth caps, captive portals and DPI. Here's the 2026 troubleshooting playbook for fast VPN on hotel networks.
• Android VPN Setup for China — Step-by-Step 2026 Guide
  How to configure your Android phone with a VPN before arriving in China. Covers V2RayNG, NekoBox, and direct APK installation.
• iPhone VPN Setup for China — iOS Configuration Guide 2026
  Setting up a VPN on iPhone for China requires special steps since VPN apps aren't in China's App Store. Here's the complete guide.
• Getting the Best VPN Speed in China — 8 Proven Tips
  Slow VPN speeds in China? These 8 techniques will help you maximize your connection speed without sacrificing reliability.
• Why Your VPN Keeps Disconnecting in China — and How to Fix It
  If your VPN drops every few minutes in China, the GFW probably flagged your handshake. Here are the 7 fixes that actually work.
• VPN MTU Tuning for China — A Practical Speed Guide
  Wrong MTU settings cause packet fragmentation and 80% speed loss on Chinese networks. Here's how to find and set the right MTU value.