I want to let u know that I followed the instruction and it did not work for me.
But finally on the bottom right side by the clock I saw the icon for the Norton Internet Security, I clicked on it and I saw the Personal Firewall option and opened it and Isaw the Limewire was all blocked.
I just changed the option to Permit all and exit all windows.
I restarted Limewire and it is WORKING.............for me.
I hope this can help you too.