HAMACHI VPN. Need to change my registered IP

Posted on 2007-07-31
Last Modified: 2013-11-30
I am trying to use HAMACHI VPN free version.  However, it's been installed using a Hamachi IP from another system I have running on my network by mistake. It should have it's own Hamachi IP.  I've tried uninstalling and reloading, but somewhere in the registry the unwanted Hamachi IP must always be lingering, because no matter what I do, everytime I reinstall Hamachi, whether it be a different version (like or the current version of, the same Hamachi IP always reappears.  It's giving me the error message of MEDIATION SERVER REJECTED YOUR AUTHENTICATION.  Any ideas how I can cleanly, and fully unload this program so when I reinstall, I can set it up with a new HAMACHI IP?
Question by:munkimann123
    LVL 77

    Accepted Solution

    Hamachi assigns your computer an IP using DHCP when it connects, I would be surprised it would assign the same IP as another machine, unless it were cloned? As for the message, might you have a proxy server configured under preferences?
    LVL 77

    Expert Comment

    by:Rob Williams
    Thanks munkimann123.
    Cheers !
    LVL 1

    Expert Comment

    delete your C:\Documents and Settings\%USERNAME%\Application Data\Hamachi folder, restart hamanchi... boom, new ip

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