Guys...oen method can really works! posted by previos posts before. but i still want to emphasize here.
1. Open your 'Run' (Windows key+R)
2. Type 'services.msc'
3. Find 'LogMeIn Hamachi Tunneling Engine'
4. RESTART this service
DONE! thanks for the frens help! enjoy it! and u guys no need to reset to new IP everytime! :)