I cannot connect to the network for some reason, while another machine on the same network can. I am being told that there is a firewall up, yet I have none installed on my machine.

1. I am using Windows 2000 Professional Service Pack 3
2. With no firewalls (at least I couldn't find one, and I never installed one)
3. 512MB RAM
4. I have about 9GB available on the drive for downloads.
5. Cable Connection
6. RCA Cable Modem - Model # DCM325
Linksys Etherfast Cable/DSL Router with 4 Port Switch - Model # BEFSR41 ver4.2
7. Home connection
8. Limewire 4.9.33
Java 1.4.2_05
9. Comcast is my ISP
10. "Your test worked!!"
11. There are 2 computers connected to the router if that's what you mean. The first port is being used by an XP machine and it has 0 problems with connecting to Limewire even with a firewall in place.
12. First attempt with LW on this network... The thing is that I can host games on Warcraft III (port in 6000 range) without a problem... also, I used to be on a different network and was able to access LimeWire without a problem. This is a new issue in that regard.
13. Yes, I see a brick wall.
14. Right now I'm trying port forwarding, but as I stated earlier, WC3 is no problem, but Limewire will not connect.
15. I used Avast Anti-virus (demo) and Ewido (demo) in the past, but both have been uninstalled. The only other program that even comes close would be AdAware.
16. I live in the United States of America.

I hope you can help me cos this is bugging me. Thank you.