I use Hamachi in many of the small church clients we support. It’s an excellent low-cost solution for VPN access to approved network resources. I ran into a problem tonight that has a fairly easy fix. I experienced an issue with Hamachi starting up on a Windows Vista Business laptop. Hamachi appeared to connect and disconnect at random. I stopped the process and tried to restart Hamachi but received a “failed to connect to the engine” error.
The fix is to start services.msc, navigate to LogMeIn Hamachi 2.0 Tunneling Engine, start the tunnel, then start Hamachi.