Thank you, but like the hub3 it only has the one light (bar) which changes colours and flashes for various reasons unknown to me 
Also has some kind of display which sometimes shows the virgin logo (red) and sometimes a Wifi logo (red) but not sure what they mean when on or flashing. Mostly they are off ?????
Engineers who installed it never knew how it works, we discovered that it has no built in modem - and uses Wifi to the Hub 3 (sometimes!*!*!).
Second engineer today (2 days day after installation) and we have now connected them to my Wired (Ethernet) network to get them to share, seems the Wifi is not fully playing.
Also.... just been informed by a Virgin agent that we are on a trial (Hmmmm).
Thanks again.