Hi Frostbite
sorry if this sounds silly - but you mentioned a faulty 'patch' lead. - was that replaced? Did you do it, or did the engineer?
I'm just wondering, afaik the connection between the stb & the router WAN socket should be crossover, while router to PC should be straight through, are you sure you have that right?
http://homepage.ntlworld.com/robin.d...net.html#xover