Ozgur, First off this is not a question to be posted here as its specifically Quintum your asking about. Having said that, when you placed the Quintum behind the NAT did you configure an ExternalIPAddress? This is under config-->unit-->1-->extip. Please check that. Also is the Public IP (extip) you are or will be configuring on the Quintum static? If not then you will lose registration w/GnuGK when lease expires and IP changes. QEng7 __________________________________ Do you Yahoo!? Meet the all-new My Yahoo! - Try it today! http://my.yahoo.com ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/