So that would suggest the Hub DNS server is OK. Do you Parental Controls enabled as this would stop you using the Google DNS servers. See Link http://bt.custhelp.com/app/answers/detail/a_id/46768#turnoff for how to check / disable.
I'm at a bit of a loss as to where we're at. Can you just humour me and from a PC command line run the following:
- ping 220.127.116.11
- ping bbc.co.uk
- ipconfig /all
And then copy / paste the output from that here?