We are not psychic on the forum so your specs. Pretty please with sugar on top

You can just press Quote and fill in the answers. It's really really easy

1. What's your connection like - do you have any green bars at all?
Is there a brick wall in front of world ?

2. Do this test & see if it works. What does it say ?
http://www3.limewire.com:6346

3. What are your details

OS ? (Win XP, Mac OSX etc.)
How much free harddiskspace ?
How much RAM ?
LW & Java version ? (In Limewire press Help>about LW & you'll see)
What Firewall you're using ?
Modem/router brand & model ?
Are you using portforwarding, UPnP or nothing ? (Tools>Options>Advanced>Firewall Config)
What is your listening port ? (Same as above)
ISP (Internet Service Provider) ?
Connection type ? (Dial-Up, ADSL, DSL etc) + Speed Up/Down if you know
Where you connect from (home, school etc)
Are you sharing a connection with other computers
Has Limewire ever worked for you ? If so how long have you been using it ?

Have you tried using any other P2P apps & if so, do you have the same problems ?

Also include any attempts to fix this. It helps people rule things out