WooHoo!!! Mr broadstairs, you are a star Sir
Those screenshots you posted did the trick, matched your settings including the DHCPC bit, and it's online
By the look of it, I may be on a different firmware to you, my GUI isn't as smooth and it's a bit clunky, also the 5GHz wifi seems a bit odd.
On the plus side, I've traded a couple of meg up for an extra 7 meg down compared to the TT Wifi Hub
...but if I can't get the 5GHz sorted, I might have to resort to the TT Hub as a wifi access point