This is also happening to me.
I received my hub this morning at 10.40am. It has so far taken me 4+ hours trying to get it to work.
I set it up as per instructions and left it for a good hour. No connection & flashing green base light the whole time. There is no mention of activating it whatsoever in the manual I was supplied. I went on youtube & saw a guide where someone got a text message from VM saying to text back GO which I hadn't received either.
Then low & behold, at 12.01pm I received said text within minutes of watching said video. Replied "GO" and instantly got a message saying it would take 20 minutes to activate. Great, now you tell me!
At 12.16pm I received a message saying it had been activated and to setup my kit within 12 hrs. So I unplugged it all & reconnected again.
Still flashing green base light.
THEN at 1.17pm I received a text saying "Okay - let's get cracking!. We've sent the signal to your home & everything's ready for you, so you can set up your kit."
WHAT?...so I just wasted another hour? Why did the previous text say it was ok to setup if it wasn't? Why not tell me initially that I would have to wait another hour or so before trying to setup the kit instead of going ahead like I was instructed?
So, I unplugged everything & reconnected everything up - again....
Still flashing green base light. So I texted back "HELP" as instructed & it said "Sorry about this. Turn everything off then on again and wait 30 min (this does work!)"
Really?....no it didn't.
That is when I came on here, saw this post, and pressed the reset button on the hub. That was at 2.29pm
Current state of affairs at 3.00pm (gave it 30 minutes as instructed) - still flashing green base light!
HELP please. I've spent more time on this forum since ordering this new broadband last week, due to other problems & now this one, than I have in the previous 10+ years of VM supplied broadband. Starting to think maybe I should have stayed away since leaving last year. I'm just glad I made sure I had a few days overlap before my "current" connection ends 😞