This isn't the first time I've seen a post from someone who is paying for the ntl broadband & console service (2 IP service) yet does not actually seem to be receiving it
I would recommend saving your money, & ditching the ntl broadband & console service.
Instead of that, & instead of doing a direct connection & switching cables, why not try:
1) ICS (Internet Connection Sharing)
or
2) A router
I'd definitely recommend a router. Cheap (around 30 quid), easy, & very useful.
Have a look here for a recent post of mine on a similar subject (ignore the starting part about upgrading):
http://www.cableforum.co.uk/board/sh...232#post296232