I too have the same problem. I cannot open the client but the neworking is working (Ping and File sharing). The service is running and i have tied to restart the service and the computer. Also i have removed the h2-ui.log and it sometimes works but only for a while. After a few minutes the hamachi client closes and will generate the error: "hamachi has lost the connection to the engine." when I try to open it up again.
06-10-201009:29 AM - last edited on 11-03-201106:28 PM by Ken N.
We're running Hamachi in a commercial environment on Windows Server 2003 SP2. We've been running Hamachi as a service for about 2 years now, and we noticed this problem while doing some routine maintenance.
Yeah, I'm having this stupid problem too. Looking into alternative VPN solutions, because I'm tired of Hamachi not working... right when I need it to work. I'm done with this crap. Make a good product and maybe I'll come back.