There is the Disable ultrapeer checkbox, and older Free downloads can be found at http://www9.limewire.com:82/download/

I did note when I looked up your router that it has built-in firewall capabilities. Might be worth contacting the company's support and seeing if a firmware upgrade or if it allows port-forwarding.

See http://www.cableforum.co.uk/board/ar...ex.php/t-10508