((full)) | Hamachi Relay Tunnel

The word relay indicates relayed connection.

A is a backup connection method used by LogMeIn Hamachi when a direct, peer-to-peer connection cannot be established between two computers . While it ensures that users remain connected, it often results in higher latency (lag) and slower data transfer speeds because all traffic must pass through a Hamachi relay server rather than traveling directly between the devices. Direct Tunnel vs. Relay Tunnel

If relay mode is causing slow speeds or high latency, attempt the following (ordered by effectiveness): hamachi relay tunnel

The relay does not decrypt VPN traffic. Encryption is end-to-end between Hamachi clients.

: Open the "Services" app ( services.msc ), find LogMeIn Hamachi Tunneling Engine , right-click it, and select Restart . Allow Hamachi Through Firewall The word relay indicates relayed connection

While functional, a Relay Tunnel has distinct disadvantages compared to a Direct Tunnel:

Client A → Hamachi Relay Server (in the cloud) → Client B Direct Tunnel vs

Ideally, Hamachi attempts to create a . In a direct tunnel, data travels straight from Computer A to Computer B. This offers the lowest latency (ping) and the fastest transfer speeds, as it bypasses intermediate servers.

Explicitly allow and UDP port 17784 if you are manually configuring port forwarding or advanced firewall rules. Disable "Block Unlisted Filters" (Advanced)

| Metric | Direct Tunnel | Relay Tunnel | |--------|---------------|--------------| | Latency | Low (RTT ~10–50 ms typical) | Higher (+50–200 ms depending on relay location) | | Bandwidth | Limited only by client ISP | Shared relay bandwidth (may throttle under load) | | Reliability | Dependent on NAT/firewall | Very reliable (relay always reachable) | | Privacy | P2P (no third-party visibility) | Relay sees metadata (source/destination IPs, timing, volume) | | Cost | Free for up to 5 clients (relay still available) | Included in all plans |

In a direct tunnel: