Did you remember to tick the box for SSL Enabled when setting up the twofo favourite hubs? The box needs to be ticked as well as setting the address as hub.twofo.co.uk:4146 in valknut
The server the hub is on is having quite alot of trouble at the moment, so currently the hub is actually down. I can't give a time when it is likely to be back up so it is mostly just a case of leaving it connecting and it will get there eventually.
I am vaguely trying to keep the facebook group at https://www.facebook.com/groups/2220896189/ updated, but it boils down to it'll be intermittently up and down for a while still