Is the actual model no. Toshiba WRC-1000? You are getting a false response which means something is blocking your access for LW if only partially. Set ALL your firewalls to allow LW access with instructions here: ttp://www.limewire.com/english/content/firewalls.shtml
Many adsl & dsl modems nowadays use NAT which is comparable with firewalls in that it blocks most of your ports. If you can be more specific with your modem details then hopefully we can clear that up.