When you set up port forwarding, did you use these instructions?
http://www.portforward.com/english/r...4/Limewire.htm

Did you make sure to set up a static IP address first? Did you also make sure that the port forwarded & LW's listening port were the same number? Go back through & double check everything...it's easy enough to make a mistake & not realise.

I think your router supports UPnP. If port forwarding's not working (it's usually pretty reliable) you could also enable UPnP within the router & choose the UPnP option within LW (tools > options > advanced > firewall config. Apply to save a change)...see if that changes anything.

Make sure that your McAfee's configured properly. Also check that there's no firewall associated with your apartment block's internet connection.

Starhub are known for throttling bandwidth, but AFAIK they don't block ports. Still, you could try changing ports to one between 49152 - 65535. You'll have to change LW's listening port & any ports forwarded thru your router