Hamachi Relayed Tunnel To Direct Tunnel Fix 〈2024〉

Hamachi Relayed Tunnel to Direct Tunnel Fix: The Ultimate Guide to Boosting Speed Introduction: The Frustration of the "Yellow Eye" For years, LogMeIn Hamachi has been the go-to VPN solution for gamers, remote IT administrators, and small business owners. It offers a zero-configuration virtual LAN (VLAN) that makes networking across the internet feel local. However, there is one phrase that strikes fear into the heart of every Hamachi user: "Relayed Tunnel." When you see a "Relayed Tunnel" status next to a peer (often indicated by a yellow icon instead of a green one), your connection speed drops from up to 50 Mbps (Direct) to roughly 500 Kbps (Relayed). This lag makes gaming impossible, file transfers painfully slow, and remote desktop sessions unresponsive. The holy grail of Hamachi optimization is achieving a "Direct Tunnel." This article provides a comprehensive, step-by-step fix to convert your Relayed tunnels into Direct tunnels, dramatically improving latency and throughput.

Part 1: Understanding the Problem (Why Relayed Tunnels Happen) Before fixing the issue, you must understand the network topology. Hamachi uses three types of connections:

Direct Tunnel (Green): Two clients communicate peer-to-peer (P2P) over the internet. This is the fastest method. Relayed Tunnel (Yellow): Two clients cannot connect directly due to firewall or NAT restrictions. Hamachi’s servers in the cloud act as a middleman, forwarding packets. This is slow and high-latency. Gateway Tunnel (Blue): Used when connecting via a Gateway computer.

The Root Causes of Relayed Tunneling A relayed tunnel occurs when UDP hole-punching fails. Your computer and your peer’s computer simply cannot find an open port to talk to each other. Common causes include: hamachi relayed tunnel to direct tunnel fix

Strict NAT Types: If either side is behind "Symmetric NAT" or "Port Restricted Cone NAT," direct connections are blocked. Windows Firewall: The Hamachi service often fails to register exceptions correctly, or third-party antivirus firewalls block the traffic. Double NAT: You are behind a router that is behind another router (e.g., apartment building internet + your personal Wi-Fi router). ISP Grade CGNAT: Many cellular ISPs (Starlink, T-Mobile Home Internet, 4G/5G routers) use Carrier-Grade NAT, making you share an IPv4 address with hundreds of users. IP Helper/P2P Blocking: Some corporate networks or school networks explicitly block P2P UDP traffic.

Part 2: Diagnostics – Are You Really Relayed? Do not rely solely on the icon color. You need to verify the connection path.

Hover over the peer’s name in the Hamachi client. It will explicitly say "Direct tunnel via UDP" or "Relayed tunnel via server." Run a Latency Test: Hamachi Relayed Tunnel to Direct Tunnel Fix: The

Right-click the peer > Ping . Direct tunnels should show < 100ms. Relayed tunnels often show > 200ms or timeouts.

Check the Hamachi Log:

Navigate to %appdata%\LogMeIn\Hamachi\ (Windows) or /var/log/logmein-hamachi/ (Linux). Search for the peer's nickname or IP. Look for lines containing "relay" or "direct" . A direct negotiation log will show UDP hole punching successful . This lag makes gaming impossible, file transfers painfully

Once confirmed you have a yellow/relayed status, proceed to the fixes below, ordered from easiest to most technical.

Part 3: The 10-Step Hamachi Relayed to Direct Tunnel Fix Fix #1: Restart & Update (The Obvious Check) Hamachi’s background service can crash silently.