Before changing complex settings, restart the core service that manages your tunnels. Press Win + R , type services.msc , and hit Enter. Find . Right-click it and select Restart . Primary Fix: Configure Windows Firewall Exceptions
: In Firewall settings, go to Advanced Settings > Public Profile > Customize (under Protected network connections). If Hamachi is checked, uncheck it to prevent the firewall from applying strict public rules to your virtual network. Advanced Fix: Static Ports and Port Forwarding hamachi direct tunnel blocked
: Your local network configuration or firewall settings might be blocking the direct tunnel. Firewalls and routers can sometimes prevent Hamachi from establishing a direct connection. Before changing complex settings, restart the core service
Hamachi loves to hop ports, which confuses most routers. Forcing a static port makes it easier to "punch through" the firewall. Right-click it and select Restart