Try and close LW completely (i.e. also in the system tray). Then use the search function of your computer via "START" to locate the "Limewire" preference folder, which should be in the "Application" folder (on my computer it looks like this: C:\Documents and Settings\Administrator.MICROSOF-4FD83F\Application Data ). Delete this folder; you will have to reconfigurate LW after restarting it (i.e. Language, Shared Folder, etc.).
If that doesn't solve your problem, get back here and give us some specs about your system:
1. OS version? (eg: Windows 98)
2. What firewalls you have?
3. How much ram?
4. Hard Disk space available?
5. Connection type? (eg: dialup, broadband, cable, etc.)
6. Modem & router brand name & model numbers?
7. Where are you trying to connect from (home, school, work, etc.)?
8. What version of Limewire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version.
9. Who is your isp provider (Internet Service Provider)?
10. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up.
11. Is this a your 1st try at LW or is this a new problem with an experienced user.
12. Do this simple test for us. Using your browser go here:
http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there?