1. Go to your Add/Remove Control panel & remove "all" java versions you find. Then install the "Offline"
JRE version of Java from here
Java 1.5 (take the JRE)
2. Make sure you have your firewall & modem/router set properly (also see upnp section, if your modem/router doesn't support UPnP then see manual port forwarding section below that) here
Connection problems? Check here first! (click on link)
3. Try steps 2 & 3 here
Fixes for Limewire & make sure your LW prefs are deleted if you have any.
4. Then install the "Offline" LW version.