I think we have the same isp. I also cant connect. I have tried the same setup with another ISP and it works.

I think you should call up the ISP and complain why they are blocking p2p access . Add your voice to increase the number of complains.

I think they might have installed a new firewall or network equiptment that blocks limewire access. Blocking may be intentional or inadvertently.

Hope they correct it soon.