Trashmad & Rajeev try this: Fixes for Limewire & see if this helps. Give LW some time to connect. Even perhaps up to an hour.

If still have problems after that then please supply the following: Can you give us a total desciption of your set up:
1. Operating System version (eg: win 98),
2. What firewalls you have,
3. ram, 4. HDD space available,
5. Connection type,
6. Modem & router brand name & model numbers,
7. Where are you trying to connect from (home, school, work, etc.)?
These details are vital if you want us to find out what your connection problem is.