You need to create static IP's for each computer you connect through your router,
Then,on each computer you wish to use L/W, add a different port number.

Manual Port forward using port numbers between 45000 To 65000
Both Manual Port forward No, & listening port should be set at the same number.
In LimeWire, GO to Tools/Options/Advanced/Firewall Config & use Manual Port forward.
Then Port forward your router, to each computer.

that will also need configuring.
Find your router listed here, Use this blue link. & dont forget to create a static IP first, & click apply after changing each setting.
PortForward.com - Free Help Setting up Your Router or Firewall
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Peace.

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mickjapa108