We are unfamiliar with this issue.

Are you completely certain that you have a live connection to the Internet when you start LimeWire? What operating system are you using?

This should not happen unless you are disconnected from the Internet. LimeWire will automatically search for a port to use if the default one is in use, so it should be able to find a port without a problem if you are connected to the network.

Any more information you can provide would be helpful. Any word from anyone else experiencing this problem?