Hamachi loves to hop ports, which confuses most routers. Forcing a static port makes it easier to "punch through" the firewall.
Windows often treats Hamachi as a secondary connection, which causes it to time out. Open > Network and Sharing Center . Click Change adapter settings .
: Ensure you're using the latest version of Hamachi. LogMeIn often releases updates that fix bugs and improve connectivity. hamachi direct tunnel blocked
(both Windows and router) to isolate cause
Sometimes the Hamachi driver just gets "stuck" in a relayed state. Press Win + R , type services.msc , and hit Enter. Find . Right-click Restart . Hamachi loves to hop ports, which confuses most routers
I can provide specific steps if you know your router model!
What next to your friend's name (Cyan, Blue, or Yellow)? Open > Network and Sharing Center
When you see a "direct tunnel blocked" or "relayed tunnel" message in LogMeIn Hamachi, it means your computer cannot establish a peer-to-peer connection with another user. This usually forces the traffic through a slower relay server, resulting in high latency and connection drops.
| Cause | Explanation | |-------|-------------| | | Both peers are behind symmetric NAT or restricted cone NAT | | Double NAT | ISP-level NAT + router NAT (e.g., CGNAT, mobile hotspots, some Starlink) | | Firewall blocking | Windows Defender, third-party AV, or router firewall blocks Hamachi’s UDP ports | | VPN interference | Another VPN (corporate, Proton, WireGuard) changes routing table or blocks non-VPN traffic | | Hamachi virtual adapter disabled | Network adapter turned off or driver corrupted | | IPv6 mismatch | One peer has IPv6 enabled, the other doesn’t – can interfere with direct discovery | | ISP restrictions | Some ISPs block UDP hole punching (rare but possible) |
: The Hamachi service might not be running or could be experiencing issues.
You must then go to your router settings and Port Forward these two numbers to your local IP. 3. The "Power Cycle" for Virtual Adapters