AOL America Online is reknown as a problem with p2p as Remoc suggested. Also, they offer services to people all over the country, they rent lines from local ISP's to achieve that. Question is also what policies to the local ISP's have toward p2p.
Here's a couple of things to try:
1.
Tip: Purge the Downloads Queue! (click on blue link). Too many incompletes can give LW major problems. They can also give a modem/router problems with too many attempted connections, thus UPnP might be failing as a result.
2. Try deleting your LW Preferences folder whilst LW is
closed; instructions here:
Point #2 & 3 in Fixes for Limewire (sample image included at bottom of page.) or if you are using VISTA, then see
http://www.gnutellaforums.com/genera...der-vista.html. Remember to make a note of all your settings before you delete the prefs folder. Next time you open LW, you will need to reset all your options again.