Date: October 26, 2023 Subject: Technical Troubleshooting Guide for LogMeIn Hamachi Connectivity Issues Status: Analysis & Resolution Steps
| Cause | Fix | |-------|-----| | Firewall blocking UDP | Allow Hamachi & port 12975 | | Strict NAT (Symmetric) | Enable UPnP or port forward | | Automatic settings wrong | Set to “Allow direct connections” | | Network restrictions | Test on another network |
Once direct, you’ll see “Direct tunnel” in the peer status – and enjoy lower latency and higher speeds.
A relayed tunnel (indicated by a blue dot) occurs when Hamachi cannot establish a peer-to-peer connection and must route traffic through its own servers, causing high latency. A direct tunnel (green dot) is the goal for optimal performance. 🛠️ Quick Fixes
If you are seeing a blue dot, try these immediate steps before moving to advanced configuration:
Restart the Engine: Open services.msc, right-click LogMeIn Hamachi Tunneling Engine, and select Restart.
Power Cycle: Turn the Hamachi power button off and then back on within the client.
Check Antivirus: Ensure your antivirus (like Kaspersky) isn't blocking the Hamachi virtual network adapter. 🛡️ Firewall Configuration
Windows Firewall often blocks the specific traffic needed for direct tunneling.
Go to Control Panel > System and Security > Windows Firewall. Select Allow an app or feature through Windows Firewall.
Click Allow another app... and browse to the Hamachi installation folder (usually C:\Program Files (x86)\LogMeIn Hamachi). Add hamachi-2.exe (the engine, not just the UI). Ensure both Private and Public checkboxes are marked. 🌐 Advanced: Port Forwarding & Static Ports Hamachi Tutorial: solve relayed tunnel (english)
To fix a Hamachi relayed tunnel and change it back to a direct tunnel, you typically need to address network configuration conflicts, specifically regarding port forwarding and firewall settings. hamachi relayed tunnel to direct tunnel fix
A relayed tunnel (indicated by a cyan/blue circle) means LogMeIn Hamachi cannot establish a direct peer-to-peer connection, forcing traffic through Hamachi's servers. This results in high latency and slow speeds. A direct tunnel (green circle) is the goal for optimal performance. 🛠️ Step-by-Step Fixes 1. Configure Port Forwarding
The most effective fix is manually setting ports in your router and Hamachi settings.
Pick Ports: Choose two UDP ports (e.g., 41221) and one TCP port (e.g., 12975).
Router: Log into your router and forward these ports to your PC's local IP address. Hamachi Settings: Go to System > Preferences > Settings > Advanced Settings.
Under Peer Connections, set "UDP Address" to your chosen UDP port. Set "TCP Address" to your chosen TCP port. Restart: Fully close and restart Hamachi. 2. Disable Universal Plug and Play (UPnP)
Sometimes UPnP malfunctions and creates "ghost" mappings that block Hamachi.
In Hamachi Advanced Settings, find Disable UPnP and set it to Yes.
This forces the app to use the static ports you defined in Step 1. 3. Adjust Firewall and Antivirus
Security software often flags the specific peer-to-peer traffic Hamachi uses.
Add Hamachi-2-ui.exe and Hamachi-2.exe to your Firewall Exceptions.
Ensure the Hamachi Network Adapter is set to "Private" or "Work" network profile rather than "Public." 4. Reinstall the Virtual Adapter If the driver is corrupted, the tunnel will always relay. Go to Device Manager. Find Network Adapters > Hamachi Virtual Ethernet Adapter. Uninstall it (do not delete driver software). Report: Resolving Hamachi Relayed Tunnels to Direct Tunnels
In Hamachi, go to Action > Reinstall specialized driver or simply restart the app to prompt a reinstall. 💡 Quick Diagnostic Checklist Status Symbol Action Needed 🟢 Green Direct Tunnel No action; working perfectly. 🔵 Cyan Relayed Tunnel Check Port Forwarding / UPnP. 🟡 Yellow Check Firewall / Antivirus. ⚪ Grey Check internet or Hamachi Service. To help you get this running perfectly, could you tell me:
What Router Brand are you using? (e.g., TP-Link, Netgear, ASUS)
Is this happening with all peers in your network or just one specific person?
Are you on a home network or a restricted network like a university/dorm?
I can provide specific router menu instructions if I know the model! AI responses may include mistakes. Learn more
Hamachi Relayed Tunnel to Direct Tunnel Fix: A Complete Guide
If you see a cyan (blue) dot next to a friend’s name in LogMeIn Hamachi, you are stuck in a Relayed Tunnel. This means your traffic is being routed through Hamachi's servers rather than directly between your computers, leading to high latency and "lag" in games or file transfers.
To get that green dot—the sign of a Direct Tunnel—follow this step-by-step fix guide. Step 1: Allow Hamachi Through the Windows Firewall
The most common cause of a relayed tunnel is the Windows Firewall blocking the Hamachi Tunneling Engine.
Open the Control Panel and go to System and Security > Windows Defender Firewall.
Click Allow an app or feature through Windows Defender Firewall. Quick Recap | Cause | Fix | |-------|-----|
After applying the fixes, verify the connection status:
Last tested with Hamachi 2.2.0.633 – March 2025
A relayed tunnel (indicated by a blue dot) occurs when Hamachi cannot establish a direct connection between peers, usually due to firewall or router restrictions. This often leads to higher latency and slower speeds compared to a direct tunnel (green dot). 1. Configure Windows Firewall Exceptions
Firewalls often block the necessary ports for a direct connection.
Open the Control Panel and navigate to System and Security > Windows Firewall. Select Allow an app or feature through Windows Firewall.
How to Fix Hamachi Relayed Tunnel to Direct Tunnel (2026 Guide)
If you are using LogMeIn Hamachi to play games with friends or access files, you may encounter a Relayed Tunnel (indicated by a blue dot) instead of a Direct Tunnel (green dot).
A relayed tunnel means your connection is routing through a LogMeIn server, leading to high latency (lag) and lower speeds, whereas a direct tunnel creates a direct peer-to-peer connection. Here is a comprehensive guide to fixing this, updated for 2026. Phase 1: Basic Troubleshooting (Quick Fixes) Restart the Service: Right-click the Windows start button, select LogMeIn Hamachi Tunneling Engine , right-click it, and select Toggle Power Button:
Click the Power button in the Hamachi UI to take it offline, then click again to bring it back online. Ensure Both Users are Online:
A direct tunnel cannot be established if both parties are not actively online with green dots on their own end. Phase 2: Windows Firewall Configuration (Most Likely Fix)
Windows Firewall often blocks the specific Peer-to-Peer connection Hamachi uses. Open Windows Firewall: Search for "Allow a program" in the Start Menu and select Allow a program or feature through Windows Firewall Change Settings: Change settings button (requires admin rights). Add Hamachi Engine: