Troubleshooting Pinging Hamachi Hosts
You see the following error:
Destination Host Unreachable.
The host you are trying to ping is not present in the network.
This indicates that the Hamachi client is turned off, or is otherwise unable to establish a connection to the other peers in the network. The most common software that blocks Hamachi is the Windows Firewall .
Tip: If your destination Hamachi client has a third-party firewall or anti-virus, you may need to allow the Hamachi adapter through their firewall. Contact your firewall or anti-virus software vendor for assistance.