Did you configure your firewall so it allows LW full access (advisable not to have 2 active firewalls b/c they can interfere with each other);
Firewall configuration instructions (click on link)
Manual port forwarding as described here
http://www.portforward.com/english/r...0/Limewire.htm
(a) (i) Set up a static ip, then (ii) forward port 6346,
http://www.portforward.com/english/...7W/Limewire.htm & also here as the last step
(b)
Manual port forward instructions & sample image & 2 posts after that.
BTW after you log into your Speedstream 5200, see if it has UPnP options. Tell us if it does so you might be able then to skip the above steps.