Hamachi Relayed Tunnel To Direct Tunnel Fix File
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.
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) hamachi relayed tunnel to direct tunnel fix
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. To fix a Hamachi relayed tunnel and change
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).
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? Part 4: Verifying the Fix – The Green
I can provide specific router menu instructions if I know the model! AI responses may include mistakes. Learn more
Part 4: Verifying the Fix – The Green Light
After applying the fixes (especially #3 Firewall and #5 Port Forwarding), you must verify:
- Full shutdown of Hamachi (not just close).
- Restart your router (release NAT tables).
- Launch Hamachi as Administrator (right-click > Run as Admin).
- Wait 2 minutes. Direct tunnels often take 60-90 seconds to negotiate.
- Hover over the peer. You should now see: "Direct tunnel via UDP [Public IP:Port]"
Performance Benchmark:
- Relayed: ~500 Kbps, 150ms+ ping.
- Direct: 5-50 Mbps (depends on your ISP upload), 10-50ms ping.
Step 1: Update Hamachi
Ensure that you are running the latest version of Hamachi. You can check for updates in the Hamachi client or download the latest version from the LogMeIn website.
Step 1: The Quick Wins (Software Configuration)
A. Disable IPv6 on the Hamachi Adapter This is the single most effective fix for "Stuck on Relay."
- Press
Win + R, typencpa.cpl. - Find the Hamachi Network Interface.
- Right-click > Properties.
- Scroll down to Internet Protocol Version 6 (TCP/IPv6).
- Uncheck the box > Click OK.
B. Kill the Relay via Context Menu Sometimes Hamachi misreports. Force a re-handshake:
- In the Hamachi client, right-click the peer showing "Relayed."
- Click "Copy IPv4 Address" (to keep it in clipboard).
- Right-click the peer again > "Details..." > Close the box.
- Open Command Prompt (
cmd) and typeping [paste IP here] -t. - Watch the Hamachi UI. It often flips to "Direct" within 10 seconds.
Causes of Relayed Tunnel Issue
The Hamachi relayed tunnel issue can occur due to various reasons, including:
- Network Configuration: Incorrect network configuration, such as firewall settings or port restrictions, can prevent Hamachi from establishing a direct tunnel.
- NAT and Router Issues: Network Address Translation (NAT) and router configurations can interfere with Hamachi's ability to establish a direct tunnel.
- Hamachi Configuration: Incorrect Hamachi settings or outdated software can cause the relayed tunnel issue.