tenta isto:
Give the Hamachi virtual network adapter highest priority:
Open up Network Connections
Click onto the Advanced menu, and select Advanced Settings...
In the Adapters and Bindings tab, under Connections, move the Hamachi adapter to the very top of the list by
using the up/down errors on the right side
OK out of Advanced Settings section and close off Network Connections
Give higher priority to the Hamachi application:
Go to Start, then Run, and run taskmgr.exe
Click onto the Processes tab, and click Image Name to sort the application names alphabetically
Locate hamachi.exe, right-click it, and Set Priority to High (or set it to Realtime, if you've got the balls!)
While still in Task Manager, sort the list by CPU and look at closing programs that are taking a constant portion of the CPU (e.g. ~20%)
Close Task Manager once done
..eu uso este HamachiSetup-1.0.2.5 e nao tenho problemas.