Hamachi Relayed Tunnel To Direct Tunnel Fix (2027)

Some ISPs or workplace networks block UDP hole punching entirely. In that case, relayed is the only option.

If you are on a corporate or school network, the admin may block relay.logmein.com (port 443) or UDP to external IPs.

Hamachi falls back to a relayed tunnel when a direct connection fails. Common causes: hamachi relayed tunnel to direct tunnel fix

Forward UDP 12975 to your PC’s LAN IP address.
Note: This only helps if you are the network host. In most peer-to-peer Hamachi networks, it’s not strictly needed unless both sides are behind strict NAT.

LogMeIn Hamachi is a popular virtual private network (VPN) service that allows users to create a virtual network and connect to it remotely. However, some users may encounter issues with their Hamachi connection being stuck in a relayed tunnel mode instead of a direct tunnel mode. This can result in slower connection speeds and reduced network performance. In this write-up, we will provide a step-by-step guide on how to troubleshoot and fix the Hamachi relayed tunnel to direct tunnel issue. Some ISPs or workplace networks block UDP hole

If you have exhausted all fixes (NAT is symmetric, ISP is CG-NAT, or corporate firewall blocks UDP), you cannot achieve a Direct tunnel. Here is the workaround.

Sometimes, the router is configured correctly, but the local Windows Firewall is blocking the direct UDP handshake. If you are on a corporate or school

The following steps should be performed sequentially. It is recommended to perform these steps on both ends of the connection if possible, though fixing one side is often sufficient.