Used to work fine. Got booster and mini box.

Tried so far:-
1. Reset booster and re-link with main sky q box. (all three lights are lit - this is good?).
2. Reset mini box. Do the button booster when it says. No new lights light up.

For first 10 attempts it said no DHCP. Then it got past that. Now its saying no activation server.

Broadband is with vodaphone. SkyQ main box has been losing connection to it - so there could be a problem here?
But I thought SkyQ - booster - mini used its own mesh network?