Help with setting up gnutella

I have not been able to set up Gnutella correctly. Every time that i change the ip address, it just goes back to the default. I go to local area connections... then properties.. then advanced... then settings... then edit Gnutella to the correct ip address.. but evertime after i hit ok it just goes back to the default... what am i missing... i have windows xp and i am trying to set up limewire. Can Anyone Out There Help Me