Click the button at the top right (requires admin rights).

Right-click the network adapter and select Properties . Double-click Internet Protocol Version 4 (TCP/IPv4) . Click the Advanced button at the bottom right. Uncheck the Automatic metric box. Enter 10 in the Interface metric field. Click OK on all windows to apply. Step 6: Disable IPv6 Protocol inside Hamachi

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This is one of the most for relayed tunnel issues, especially when peers are behind routers with poor NAT support.

| Port | Protocol | Purpose | |------|----------|---------| | 443 | TCP | SSL failover / relay connection | | 12975 | TCP | Initiator port | | 32976 | TCP | Session port | | 17771 | UDP | Relay connection port (fallback) | | Static UDP port | UDP | Direct peer connection (must be set manually) |

Change to UPnP (if your router supports UPnP) or STUN .