Hi LokoLobo
You will need to forward a port to give LW total access. If yu didn't do this before then probably LW didn't function as well as it could have.
Use
Port 6346.
Port Forwarding for the Linksys befsr41 version 1 & 2 OR
Port Forwarding for the Linksys befsr41 version 2 Firmware 1.40.2 are the instructions for your router. I'm not sure which one you shud use, you'll probably know yourself. Read the instructions very carefully!
You will also need to Force IP within LW.
Force IP instructions & sample image
Might I suggest you also update your Java.
Java 1.4.x OR
Java 1.5 (take the JRE)
Good luck.