This is how you do it:
to get settings try this here
MAC and serial number are printed on the bottom of the NowTVHub2 on the label
Use the PPPusername and PPP password this site calculates for you
For Internet provider select SKY(MER)...
Took me about 5 mins. All works.
Edit: I have a TPLink AC1200, about 2 months old.
Username: install(at)o2broadband.co.uk [Replace (at) with @ sign]